A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield.
Substances used to allow enhanced visualization of tissues.
An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous.

Feeding difficulties and foregut dysmotility in Noonan's syndrome. (1/389)

PURPOSE: Noonan's syndrome is a common dysmorphic syndrome in which failure to thrive and gastrointestinal symptoms are frequent but poorly understood. DESIGN: Twenty five children with Noonan's syndrome were investigated by contrast radiology, pH monitoring, surface electrogastrography (EGG), and antroduodenal manometry (ADM). RESULTS: Sixteen had poor feeding and symptoms of gastrointestinal dysfunction. All 16 required tube feeding. Seven of 25 had symptoms of foregut dysmotility and gastro-oesophageal reflux. In the most symptomatic children (four of seven) EGG showed fasting frequency gradient loss along the stomach fundus and pylorus with antral postprandial frequency loss. ADM showed shortened fasting cycle length, with abnormal phase III and shortened postprandial activity containing phasic contractions. IMPLICATIONS: Gastroduodenal motor activity was reminiscent of 32-35 week preterm patterns. The feeding difficulties appear to resolve as gut motility matures. In Noonan's syndrome, feeding problems appear to be the result of delayed gastrointestinal motor development.  (+info)

Colorectal cancer: risk factors and recommendations for early detection. (2/389)

Spurred by mounting evidence that the detection and treatment of early-stage colorectal cancers and adenomatous polyps can reduce mortality, Medicare and some other payors recently authorized reimbursement for colorectal cancer screening in persons at average risk for this malignancy. A collaborative group of experts convened by the U.S. Agency for Health Care Policy and Research has recommended screening for average-risk persons over the age of 50 years using one of the following techniques: fecal occult blood testing each year, flexible sigmoidoscopy every five years, fecal occult blood testing every year combined with flexible sigmoidoscopy every five years, double-contrast barium enema every five to 10 years or colonoscopy every 10 years. Screening of persons with risk factors should begin at an earlier age, depending on the family history of colorectal cancer or polyps. These recommendations augment the colorectal cancer screening guidelines of the American Academy of Family physicians. Recent advances in genetic research have made it possible to identify persons at high risk for colorectal cancer because of an inherited predisposition to develop this malignancy. These patients require aggressive screening, usually by lower endoscopy performed at an early age. In some patients, genetic testing can guide screening and may be cost-effective.  (+info)

Physician intention to recommend complete diagnostic evaluation in colorectal cancer screening. (3/389)

Primary care physicians (PCPs) often do not recommend complete diagnostic evaluation (CDE; i.e., diagnostic colonoscopy or the combination of flexible sigmoidoscopy and barium enema X-ray procedures) for patients with an abnormal screening fecal occult blood test (FOBT+) result. Information is needed to understand why PCPs do not recommend CDE. In the spring of 1994, a telephone survey was carried out using a random sample of 520 PCPs in Pennsylvania or New Jersey who had patients that were targeted for an FOBT screening program. Survey data were obtained from 363 (70%) PCPs on physician practice characteristics; personal background; perceptions concerning FOBT screening, CDE performance, and patient behavior; social influence related to CDE; and intention to recommend CDE for FOBT+ patients. Physician CDE intention scores were distributed as follows: low (22%), moderate (51%), and high (27%). Multivariate analyses demonstrate that physician board certification status, time in practice, belief in CDE efficacy, and belief that CDE is standard practice were positively associated with CDE intention, whereas concern about CDE-related costs was negatively associated with CDE intention. Among physicians in larger practices, perceived FOBT screening efficacy was negatively associated with CDE intention, and belief in the benefit of CDE was positively associated with outcome. There is substantial variability in CDE intention among PCPs. Physician perceptions about FOBT screening and follow-up are associated with CDE intention, are likely to influence CDE performance, and may be amenable to educational intervention. Additional research is needed to evaluate the impact of educational interventions on CDE intention and performance.  (+info)

Cervical osteoarthropathy: an unusual cause of dysphagia. (4/389)

PRESENTATION: A 72-year-old man complained of progressive dysphagia for solids associated with a sensation of foreign body in his throat for 2 years. A barium swallow showed a bridging osteophyte between C4 and C5 vertebrae indenting the oesophagus posteriorly and displacing it anteriorly. OUTCOME: He refused surgical intervention and was given dietary advice. After 6 months, his weight was steady and he was able to swallow semi-solid food without difficulty.  (+info)

The risks of screening: data from the Nottingham randomised controlled trial of faecal occult blood screening for colorectal cancer. (5/389)

AIMS: To determine the harm that ensues from faecal occult blood (FOB) screening for colorectal cancer. METHODS: 150 251 people were randomly allocated either to receive biennial Haemoccult FOB tests (n =75 253) or not to be contacted (n=74 998). Study group patients returning positive tests were offered colonic investigation; 1774 underwent complete investigation of the colon. RESULTS: There was no significant difference in the stage at presentation of interval versus control group cancers. Survival in the interval cancer group was significantly prolonged compared with the control group. Sensitivity for colonoscopy or flexible sigmoidoscopy and double contrast barium enema (DCBE) was 96.7%. There were no complications of DCBE but seven (0.5%) complications of colonoscopy, of which six required surgical intervention. There were no colonoscopy related deaths. No patients without colorectal cancer died within 30 days of colonic investigation. Five patients died within 30 days of surgery for screen detected colorectal neoplasia and a further two died without having surgery. Six patients died after 30 days but within two years of surgery for screen detected benign adenomas or stage A cancers; in all cases the cause of death was not related to colorectal cancer. CONCLUSIONS: There was investigation related morbidity but no mortality and little to support overdiagnosis bias. The group returning falsely negative tests had a better outcome compared with the whole control group. There is a negative side to any screening programme but mortality reduction in this and other trials suggests that a national programme of colorectal cancer screening should be given consideration.  (+info)

Lumbar hernia: a rare cause of large bowel obstruction. (6/389)

We describe a 70-year-old woman presenting with large bowel obstruction secondary to incarceration of the mid descending colon within a lumbar hernia. This was diagnosed on barium enema and successfully treated surgically.  (+info)

Audit of the investigation of iron deficiency anaemia in a district general hospital, with sample guidelines for future practice. (7/389)

Iron deficiency anaemia commonly presents in patients who are asymptomatic. In the absence of published guidelines the search for a cause in such cases is frequently uncoordinated, and risks delay in the diagnosis of pathologies requiring urgent attention. This audit was undertaken to determine how thoroughly patients referred to the gastrointestinal unit in a district general hospital between 1990 and 1995 had been investigated, and to draw up guidelines for future practice on the basis of its results. From the case notes of 334 patients examined endoscopically for anaemia 126 were identified as having both proved iron deficiency and a lack of clinical pointers to its cause. The percentage and details of diagnoses made during initial study and a median follow up period of 28 months were ascertained, together with the certified diagnoses of patients who had died. A cause of iron deficiency was identified in 48 (38%) of patients, 22 with cancer. Ten others received a diagnosis during follow up, of whom three died from the condition to which their anaemia had been attributed. Death certificates supplied diagnoses of potential relevance in three further cases. The main gaps in endoscopic coverage consisted of omitting duodenal biopsy or colonoscopy after negative upper gastrointestinal endoscopy. Moreover, diagnosis of certain extraintestinal pathologies, including cancers, was sometimes delayed for lack of liaison between gastroenterologists and other specialists. These and other points have been addressed in the guidelines now proposed.  (+info)

Abdominal aortic aneurysm: the role of clinical examination and opportunistic detection. (8/389)

OBJECTIVES: to investigate the method of discovery of abdominal aortic aneurysms (AAA) in a district general hospital setting. DESIGN: retrospective study. MATERIALS AND METHODS: we analysed 198 patients with an AAA who presented to our unit over a 3-year period. The method of initial diagnosis, size of the AAA and whether this was palpable, irrespective of the method of detection, were recorded. RESULTS: ninety-five (48%) were discovered clinically, 74 (37.4%) during a radiological investigation, and 29 (14.6%) at laparotomy. Of the 74 AAAs first detected radiologically, subsequent physical examination showed that 28 (37.8%) were in fact palpable and missed at presentation. The average size of those discovered clinically (6. 48+/-1.32 cm) was larger than those found radiologically (5.37+/-1. 44 cm, p<0.001) or at operation (5.43+/-1.48 cm, p=0.039). The average diameter of the palpable AAAs was also greater than that of the non-palpable AAAs (6.42+/-1.24 cm vs. 4.86+/-1.38 cm, p<0.001). CONCLUSIONS: opportunistic detection of a clinically unsuspected aneurysm during clinical examination or investigation for another reason is the most common way the diagnosis of an AAA is made. Almost half of the aneurysms were diagnosed clinically, but physical examination also missed more than a third of those detected radiologically. Despite technological advancement, clinical examination still plays a paramount role in the detection of AAAs. Larger AAAs are usually palpable and more likely to be detected on clinical examination.  (+info)

Barium sulfate is a medication that is commonly used as a contrast material in medical imaging procedures, such as X-rays and CT scans. It works by coating the inside of the digestive tract, making it visible on an X-ray or CT scan and allowing doctors to see detailed images of the stomach, intestines, and other parts of the digestive system.

Barium sulfate is a white, chalky powder that is mixed with water to create a thick, milky liquid. It is generally safe and does not cause significant side effects when used in medical imaging procedures. However, it should not be taken by individuals who have a known allergy to barium or who have certain digestive conditions, such as obstructions or perforations of the bowel.

It's important to note that while barium sulfate is an important tool for medical diagnosis, it is not a treatment for any medical condition and should only be used under the direction of a healthcare professional.

Contrast media are substances that are administered to a patient in order to improve the visibility of internal body structures or processes in medical imaging techniques such as X-rays, CT scans, MRI scans, and ultrasounds. These media can be introduced into the body through various routes, including oral, rectal, or intravenous administration.

Contrast media work by altering the appearance of bodily structures in imaging studies. For example, when a patient undergoes an X-ray examination, contrast media can be used to highlight specific organs, tissues, or blood vessels, making them more visible on the resulting images. In CT and MRI scans, contrast media can help to enhance the differences between normal and abnormal tissues, allowing for more accurate diagnosis and treatment planning.

There are several types of contrast media available, each with its own specific properties and uses. Some common examples include barium sulfate, which is used as a contrast medium in X-ray studies of the gastrointestinal tract, and iodinated contrast media, which are commonly used in CT scans to highlight blood vessels and other structures.

While contrast media are generally considered safe, they can sometimes cause adverse reactions, ranging from mild symptoms such as nausea or hives to more serious complications such as anaphylaxis or kidney damage. As a result, it is important for healthcare providers to carefully evaluate each patient's medical history and individual risk factors before administering contrast media.

Barium is a naturally occurring, silvery-white metallic chemical element with the symbol Ba and atomic number 56. In medical terms, barium is commonly used as a contrast agent in radiology, particularly in X-ray examinations such as an upper GI series or barium enema. The barium sulfate powder is mixed with water to create a liquid or thick paste that is swallowed or inserted through the rectum. This provides a white coating on the inside lining of the digestive tract, allowing it to be seen more clearly on X-ray images and helping doctors diagnose various conditions such as ulcers, tumors, or inflammation.

It's important to note that barium is not absorbed by the body and does not cause any harm when used in medical imaging procedures. However, if it is accidentally inhaled or aspirated into the lungs during administration, it can cause chemical pneumonitis, a potentially serious condition. Therefore, it should only be administered under the supervision of trained medical professionals.

In the laboratory barium sulfate is generated by combining solutions of barium ions and sulfate salts. Because barium sulfate ... wastes containing barium salts are sometimes treated with sodium sulfate to immobilize (detoxify) the barium. Barium sulfate is ... Barium sulfate is commonly used as a component of "strobe" pyrotechnic compositions. As barium sulfate has a high melting point ... The majority of synthetic barium sulfate is used as a component of white pigment for paints. In oil paint, barium sulfate is ...
... is typically made by mixing barium sulfate powder with water. It is a non-iodinated contrast media. ... Barium sulfate suspension, often simply called barium, is a contrast agent used during X-rays. Specifically it is used to ... "Barium Swallow". Archived from the original on 2014-07-28. "Barium Sulfate". MedlinePlus Drug Information. 15 July 2016. ... Barium sulfate has been known since the Middle Ages. In the United States it had come into common medical use by 1910. It is on ...
Calcium sulfate (anhydrite, hemihydrate, gypsum); Calcium oxalate (e.g., beerstone); Barium sulfate (barite); Magnesium ... Fouling of membranes in reverse osmosis systems can occur due to differential solubility of barium sulfate in solutions of ... Calcium sulfate is a common precipitation foulant of heating surfaces due to its retrograde solubility. Precipitation fouling ... For example, calcium sulfate decreases its solubility with decreasing pressure. This can lead to precipitation fouling of ...
Barium pigments Barium sulfate (PW5 or baryte): barium sulfate (BaSO4). Lithopone: BaSO4•ZnS. Lead pigment Cremnitz white (PW1 ... Manganese pigments YInMn Blue: a synthetic pigment discovered in 2009 (YIn1−xMnxO3). Manganese blue: barium manganate(VI) ... sulfate. Cadmium pigments Cadmium green: a light green pigment consisting of a mixture of cadmium yellow (CdS) and chrome green ...
A Purple Barium Copper Silicate Pigment from Early China. Studies in Conservation 28/1, 15-23. Sánchez del Río, M.; Doménech, A ... sulfate. Bomford and Roy, "A Closer Look at Colour" (2009), p. 28-37 Varichon, (2005) p. 164 Pastoureau, Michel, "Bleu - ... Manganese pigments YInMn Blue: a synthetic pigment discovered in 2009 (YIn1−xMnxO3). Manganese blue: barium manganate(VI) ... is a synthetic barium copper silicate pigment used in ancient and imperial China from the Western Zhou period (1045-771 BC) ...
Barium sulfate is used in some applications too. However, when the cost is important, almost any material can be used, but it ... or the plaster may contain barium sulfate. Operators view the target through a leaded glass screen, or if they must remain in ...
The vacuoles often contain conspicuous barium sulfate crystals. Closterium regulare was first described from Lower Normandy by ...
S, silica; C, calcium carbonate; P, calcium phosphate; I, iron (magnetite/goethite); X, calcium oxalate; SO4, sulfates (calcium ... barium/strontium), ? denotes uncertainty in the report. There are questions which have yet to be resolved, such as why some ... Pyrite and marcasite in sedimentary rocks deposited by sulfate-reducing bacteria. Quartz formed from bacterial action on fossil ... consists of strontium sulfate, SrSO4. The mineral is named for the delicate blue colour of its crystals. Planktic acantharean ...
When combined with barium sulfate, zinc sulfide forms lithopone. Fine ZnS powder is an efficient photocatalyst, which produces ...
Thus, it forms barium sulfate and barium phosphate with sulfuric and phosphoric acids, respectively. Reaction with hydrogen ... Barium hydroxide decomposes to barium oxide when heated to 800 °C. Reaction with carbon dioxide gives barium carbonate. Its ... barium hydroxide is used as the precursor to other barium compounds. The monohydrate is used to dehydrate and remove sulfate ... This application exploits the very low solubility of barium sulfate. This industrial application is also applied to laboratory ...
As the barium sulfate doesn't dissolve, this type of contrast agent is an opaque white mixture. It is only used in the ... Barium swallow (oesophageal investigation) Barium meal (stomach investigation) and double contrast barium meal Barium follow ... Barium sulfate is mainly used in the imaging of the digestive system. The substance exists as a water-insoluble white powder ... Radiocontrast agents used in X-ray examinations can be grouped in positive (iodinated agents, barium sulfate), and negative ...
... is a polymeric material, isostructural with barium sulfate. Crystallized strontium sulfate is utilized by a ... Strontium sulfate (SrSO4) is the sulfate salt of strontium. It is a white crystalline powder and occurs in nature as the ... Strontium sulfate is of interest as a naturally occurring precursor to other strontium compounds, which are more useful. In ... The low aqueous solubility of strontium sulfate can lead to scale formation in processes where these ions meet. For example, it ...
For example, addition of barium chloride, precipitates out barium sulfate. The filtrate on evaporation yields ammonium chloride ... Double metal sulfates include ammonium cobaltous sulfate, ferrous diammonium sulfate, ammonium nickel sulfate which are known ... Ammonium sulfate forms many double salts (ammonium metal sulfates) when its solution is mixed with equimolar solutions of metal ... Ammonium sulfate (American English and international scientific usage; ammonium sulphate in British English); (NH4)2SO4, is an ...
Barium sulfide is produced by carbothermic reduction of barium sulfate. Zinc sulfate is obtained from a variety of zinc ... Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of ... It is composed of a mixture of barium sulfate and zinc sulfide. These insoluble compounds blend well with organic compounds and ... Most commonly coprecipitation is effected by combining equimolar amounts of zinc sulfate and barium sulfide: BaS + ZnSO4→ ZnS ...
"Critical parameters in the barium perchlorate/Thorin titration of sulfate". Analytical Chemistry. 51 (13): 2293-2295. doi: ... Thorin (also called thoron or thoronol) is an indicator used in the determination of barium, beryllium, lithium, uranium and ...
The sulfate is precipitated with barium (Ba2+) and weighed as BaSO4. Gravimetric analysis, if methods are followed carefully, ... The calcium sulfate (CaSO4) in the tube retains carbon dioxide selectively as it's heated, and thereby, removed from the ... It is treated with concentrated nitric acid and potassium chlorate to convert all of the sulfur to sulfate (SO2− 4). The ...
BaSO4 Barium sulfate is insoluble in water and forms a precipitate. The aqueous bromic acid can be decanted removing the barium ... Bromic acid is the product of a reaction of barium bromate and sulfuric acid. Ba(BrO3)2 + H2SO4 → 2 HBrO3 + ... sulfate. The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals. 14th Edition. 2006. Van Nostrand's Scientific ...
The residue contains, barium, radium, and lead sulfates. The mixture will then be treated with sodium chloride and sodium ... It forms a dihydrate, very similar to barium bromide. Radium is obtained from uranium or pitchblende ores by the "Curie method ... The second stage involves separation of the barium from the radium. Radium bromide can be obtained from radium chloride by ...
It shows very good inhibition of the precipitation of barium sulfate (BaSO4). At high alkali and high temperature (above 210 °C ...
Specialized supports include silicon dioxide, titanium dioxide, calcium carbonate, and barium sulfate. In the context of ...
... barium sulfate) and lignosulfonate. The blanc fixe acts as a seed crystal for the lead-to-lead sulfate reaction. The blanc fixe ... In addition, the sulfate portion (of the lead sulfate) is not returned to the electrolyte as sulfuric acid. It is believed that ... This dispersant improves the dispersion of barium sulfate in the paste, reduces hydroset time, produces a more breakage- ... White corrosion is usually lead or zinc sulfate crystals. Aluminum connectors corrode to aluminum sulfate. Copper connectors ...
The medium's main ingredient was pharmaceutics-grade barium sulfate (BaSO4) imported from Germany. In 2003, without having the ... Postmortem exams confirmed that barium poisoning was the cause of death. Analysis of the Celobar by the Oswaldo Cruz Institute ... and resulted in the death of more than twenty X-ray patients by barium poisoning. Laboratório Enila was a small Brazilian ... Non-reacted carbonate and other barium salts that remained in the adulterated product killed nine patients. The first death was ...
Treatment of barium perchlorate with sulfuric acid precipitates barium sulfate, leaving perchloric acid. It can also be made by ...
Barium sulfate makes the nets stiffer if it is added at high concentration. All three factors: echo reflectivity, stiffness, ... A promising gillnet that is effective in reducing bycatch for harbor porpoises contains barium sulfate. These nets are detected ... Trippel, EA, Holy, NL, and Shepperd, TD, (2008). "Barium sulphate modified fishing gear as a mitigative measure for cetacean ... at a greater distance than conventional nets because the barium sulfate reflects the echolocation signal, and also renders the ...
The most common minerals of barium are baryte (barium sulfate, BaSO4) and witherite (barium carbonate, BaCO3). The name barium ... "barium meals" and "barium enemas").: 4-5 Lithopone, a pigment that contains barium sulfate and zinc sulfide, is a permanent ... Barium compounds are added to fireworks to impart a green color. Barium sulfate is used as an insoluble additive to oil well ... The primary commercial source of barium is baryte (also called barytes or heavy spar), a barium sulfate mineral.: 5 with ...
... crystallizes in a solid in the same structure as barium sulfate. It forms crystals in the orthorhombic crystal ... Radium sulfate can form solid solutions with the sulfates of strontium, barium or lead. Chambers, Michael. "ChemIDplus - 7446- ... Radium sulfate (or radium sulphate) is an inorganic compound with the formula RaSO4 and an average molecular mass of 322.088 g/ ... Distance from the radium ion to oxygen is 2.96 Å and the sulfur to oxygen bond length in the sulfate ion is 1.485 Å. In this ...
CT scans use contrast materials that are iodine-based and barium sulfate compounds. The downside of using CT scans as opposed ...
SPIO, barium sulfate, air and clay have been used to lower T2 signal. Natural products with high manganese concentration such ...
Barium sulfate (BaSO4) was thrown into the filtrate, and then calcium fluoride (CaF2). Christie found 20.43% (NH4)+ and 78.87 ... Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, etc. John Wiley and Sons, Inc., New York, 7th edition. Anthony, J.W., ...
A Lindlar catalyst is a heterogeneous catalyst consisting of palladium deposited on calcium carbonate or barium sulfate then ... Rosenmund reduction, a reduction using palladium on barium sulfate, poisoned with sulfur compounds. Urushibara Nickel, a nickel ...
In the laboratory barium sulfate is generated by combining solutions of barium ions and sulfate salts. Because barium sulfate ... wastes containing barium salts are sometimes treated with sodium sulfate to immobilize (detoxify) the barium. Barium sulfate is ... Barium sulfate is commonly used as a component of "strobe" pyrotechnic compositions. As barium sulfate has a high melting point ... The majority of synthetic barium sulfate is used as a component of white pigment for paints. In oil paint, barium sulfate is ...
Barium Sulfate: learn about side effects, dosage, special precautions, and more on MedlinePlus ... Before taking or using barium sulfate,. *tell your doctor and the staff at the testing center if you are allergic to barium ... Barium sulfate may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away: *stomach cramps ... Barium sulfate comes as a powder to be mixed with water, a suspension (liquid), a paste, and a tablet. The powder and water ...
Barium sulphate (barytes); natural. 2022. Estonia. 8.40. 10,000. Kg. China. Export. 251110. Barium sulphate (barytes); natural ... HS Code 251110: Barium sulphate (barytes); natural. Please note: Exports is gross exports and Imports is gross imports ... In 2022, Top exporters of Barium sulphate (barytes); natural to Estonia were Netherlands ($15.84K , 23,479 Kg), Sweden ($8.40K ... Barium sulphate (barytes); natural. 2022. Estonia. 15.84. 23,479. Kg. Sweden. Export. 251110. ...
Our Barium sulphate with safety instruction: lifting handles should be sewn completely around the bag. If they are. Specially ... Our Barium sulphate with safety instruction: lifting handles should be sewn completely around the bag. If they are. Specially ...
Chemtradeasia as a leading chemicals supplier provides Barium Sulphate in bulk and various grades. Click here to find 500+ ... Barium sulphide is treated with sulphuric acid or sulphate salts to obtain barium sulphate of high purity. The barium sulphate ... Barium sulphate is used as a white pigment for paper pigment due to its white appearance. In ink-jet printing, barium sulfate ... In the laboratory, barium sulphate is produced from combining solutions containing barium ions and sulphate salts. ...
Precipitated Barium Sulphate Market Size, Share, Industry Report, Growth, Analysis and Forecast Period 2023-2028. Flora Harvey ... The new report by Expert Market Research titled, Global Precipitated Barium Sulphate Market Size, Report and Forecast 2023- ... 2028, gives an in-depth analysis of the global precipitated barium sulphate market, assessing … Read More ...
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.. The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHAs published data to ECHA CHEM here.. ...
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Find patient medical information for Radiopaque Pvc Markers-Barium Sulfate Oral on WebMD including its uses, side effects and ... Radiopaque Pvc Markers-Barium Capsule. GENERIC NAME(S): Radiopaque Pvc Markers-Barium ... More Resources for Radiopaque Pvc Markers-Barium Capsule. *Find Lowest Prices on ... How to use Radiopaque Pvc Markers-Barium Capsule. Consult your pharmacist or physician. ...
Product name: Nano Precipitated Barium Sulphate (BaSO4). Properties: White Powder. Narrow particle size distribution, high ...
Barium sulfate. TWA 10 mg/m 3 (total). TWA 5 mg/m 3 (resp). ... Dimethyl sulfate. TWA 0.1 ppm (0.5 mg/m 3 ) [skin]. Dinitolmide ...
... : ... energy of sodium sulphate is more than lattice energy but in case of barium sulphate lattice energy of barium sulphate is more ... A the hydration energy of sodium sulphate is more than its lattice energy. B the lattice energy of barium sulphate is more than ... Q. Sodium sulphate is soluble in water whereas barium sulphate is sparingly soluble because (J1989,1M). ...
Barium Sulphate Precipitated ထုတ်လုပ်သူများ၊ စက်ရုံ၊ ပေးသွင်းသူများ၊ တရုတ်နိုင်ငံမှ၊ We think this sets us apart from the ... Barium Sulphate Precipitated (JX90) 副本. သယ်ယူပို့ဆောင်ရေးထုပ်ပိုးမှု- ထုပ်ပိုးမှု နှစ်ထပ်ထုပ်ပိုးမှု၊ အတွင်းပိုင်းထုပ်ပိုးရန်အတ ... Barium Sulphate Precipitated (JX90). သယ်ယူပို့ဆောင်ရေးထုပ်ပိုးမှု- ထုပ်ပိုးမှု နှစ်ထပ်ထုပ်ပိုးမှု၊ အတွင်းပိုင်းထုပ်ပိုးရန်အတွက ...
Barium is non-combustible, but may decompose upon heating to produce corrosive or toxic fumes (HSDB 2007a). Elemental barium ... Barium is a silvery-white to yellowish odorless metal that is found in nature primarily as barium sulfate or barium carbonate ( ... and barium sulfide may be flammable in moist air (ATSDR 2005). ... for insoluble barium sulfate. The PELs for barium sulfate are ... barium sulfate and barium carbonate. Water-soluble barium compounds (barium acetate, barium chloride, barium hydroxide, barium ...
Barium Sulfate, Citronellol, Tribehenin, Colophonium / Rosin / Colophane, Magnesium Silicate, Aluminum Hydroxide, Geraniol, Tin ...
Barium and its compounds. Barium sulfate. 7727-43-7. 1.795819. 29.100000. 0.387971. ...
Ba SO4, Barium Sulfate Class: Sulfates Group Bartie Uses : ore of barium Bartie is a common mineral and makes very attractive ...
Barium Sulphate extrapure AR, ExiPlus, Multi-Compendial, 98%. https://www.labresultsforlife.org/shop/7727-43-7-barium-sulphate- ...
Cobalt Sulfate Copper Sulfate Linear Alkyl Benzene Deta Dextrose Dicyandiamid ... cobalt sulfate, copper sulfate, linear alkyl benzene, deta, dextrose, dicyandiamid ...
Barium sulphate. *1-Bromopropane. *Ethylidene norbornene. *Ethyl isocyanate. *Helium. *Hydrogen. *Methomyl. *Methyl isocyanate ...
Photographs and descriptions of many samples of the element Barium in the Periodic Table. ... Barium enema, filled.. This is a complete barium enema setup, filled with actual barium sulfate suspension. Barium contrast x- ... Barium sulfate suspension. EZEM Barium Sulfate Suspension.. Source: eBay seller hcas-granite. Contributor: Theodore Gray. ... Jug of E-Z-Paque barium sulfate. This is an empty jug of Liquid E-Z-Paque brand barium sulfate for medical imaging purposes. ...
Barium sulfate suspension. Source: eBay seller hcas-granite. Contributor: Theodore Gray. Acquired: 2 April, 2009. Text Updated ...
For this study, we added barium sulfate (Bariogel; Cristália, São Paulo, Brazil) to the testing liquids and foods to obtain ...
Aluminum hydroxide (antacids), barium sulfate from barium enema. *Liver disease. Babies with blocked bile ducts have stools ...
Nanoparticles; Nanotechnology; Nanotoxicology; Nanomaterials; Barium sulfate; Barium compounds; Inorganic chemicals; Electron ... Barium sulfate (BaSo4) was considered to be poorly-soluble and of low toxicity, but BaSO4 NM-220 showed a surprisingly short ... Predicting dissolution and transformation of inhaled nanoparticles in the lung using abiotic flow cells: the case of barium ...
Any of several barium compounds, such as barium sulfate. ... Any of several compounds of barium, especially barium sulphate ... Any of several compounds of barium, esp. barium oxide and barium hydroxide. ... while dilution with artificial precipitated sulphate of lime ("annalin") or sulphate of baryta ("blanc fix") acts pretty much ... The barium and magnesium salts of this acid are formed when baryta and magnesia are fused with cobalt sesquioxide. ...
BARIUM SULFATE • DEXTRIN PALMITATE • DISTEARYLDIMONIUM CHLORIDE • PALMITIC ACID • HYDROGEN DIMETHICONE • PALMITOYL TRIPEPTIDE-5 ...
Tube test for Sulfate. Precise rapid tests for water and waste water samples. Time-saving, reliable analysis with NANOCOLOR ... Sulfate - Barium sulfate (Turbidity). NanOx N. No. NanOx Metal. No. Crack-Set. No. ... This test has been replaced by NANOCOLOR Sulfate HR 1000 REF 985063 more ... This test has been replaced by NANOCOLOR Sulfate HR 1000 REF 985063 ...
  • Water-soluble barium compounds (barium acetate, barium chloride, barium hydroxide, barium sulfide) are manufactured from naturally-occurring insoluble barium compounds. (cdc.gov)
  • NIOSH IDLH (immediately dangerous to life or health) = 50 mg/m 3 for barium chloride (NIOSH 2005). (cdc.gov)
  • An alternate soaking process was applied on the membrane surface by using barium chloride solution and sodium sulfate solution at varying concentrations (0.01 M, 0.05 M and 0.1 M). The reaction of these two salts can form a layer of barium sulfate (BaSO4) minerals atop the PA layer via an ionic interaction. (ump.edu.my)
  • The addition of 0.2 mL of barium chloride to 10 mL of a solution (1 in 100) produces no turbidity within 1 minute. (anmol.biz)
  • Although barium is a heavy metal, and its water-soluble compounds are often highly toxic, the low solubility of barium sulfate protects the patient from absorbing harmful amounts of the metal. (wikipedia.org)
  • Due to the relatively high atomic number (Z = 56) of barium, its compounds absorb X-rays more strongly than compounds derived from lighter nuclei. (wikipedia.org)
  • As barium compounds emit a characteristic green light when heated at high temperature, barium salts are often used in green pyrotechnic formulas, although nitrate and chlorate salts are more common. (wikipedia.org)
  • Limited human and animal data indicate that high-level inhalation exposure to soluble barium compounds may result in systemic effects similar to those elicited from high-level oral exposure (ATSDR 2005). (cdc.gov)
  • In nature, barium exists primarily as the relatively water-insoluble compounds, barium sulfate and barium carbonate. (cdc.gov)
  • in soluble barium compounds), and 15 mg/m 3 (total dust) and 5 mg/m 3 (respirable fraction) for insoluble barium sulfate. (cdc.gov)
  • Detection of barium compounds in environmental samples. (cdc.gov)
  • Aspiration may occur during the modified barium swallow examination, monitor the patient for aspiration. (dysphagiacafe.com)
  • Here the hydration energy of sodium sulphate is more than lattice energy but in case of barium sulphate lattice energy of barium sulphate is more than its hydration energy. (byjus.com)
  • Predicting dissolution and transformation of inhaled nanoparticle s in the lung using abiotic flow cells: the case of barium sulfate. (cdc.gov)
  • From profound hypokalemia to life-threatening hyperkalemia: a case of barium sulfide poisoning. (cdc.gov)
  • Barium sulfate (or sulphate) is the inorganic compound with the chemical formula BaSO4. (wikipedia.org)
  • Barium sulfate (BaSo4) was considered to be poorly-soluble and of low toxicity, but BaSO4 NM-220 showed a surprisingly short retention after intratracheal instillation in rat lungs, and incorporation of Ba within the bones. (cdc.gov)
  • 2005. Uncertainty of inductively coupled plasma mass spectrometry based measurements: An application to the analysis of urinary barium, cesium, antimony, and tungsten. (cdc.gov)
  • An elevated urinary barium concentration. (cdc.gov)
  • A urinary barium concentration greater than the 95th percentile for the general population is an unusual level of exposure for a person with no known occupational exposure to barium (CDC). (cdc.gov)
  • If you are using a barium sulfate enema, the enema will be administered by medical staff at the testing center. (medlineplus.gov)
  • Cimbar Performance Minerals is a global leader in the delivery of performance mineral-based additive solutions across multiple markets and industries specializing in barium sulfate, talc, alumina trihydrate (ATH). (rubbernewsdirectory.com)
  • Barium sulfate is in a class of medications called radiopaque contrast media. (medlineplus.gov)
  • tell your doctor and the staff at the testing center if you are allergic to barium sulfate, other radiopaque contrast media, simethicone (Gas-X, Phazyme, others), any other medications, any foods, latex, or any of the ingredients in the type of barium sulfate that you will be taking or using. (medlineplus.gov)
  • Insoluble barium sulfate has been safely used as an x-ray contrast material of the gastrointestinal tract, including barium enemas. (cdc.gov)
  • Barium sulfate is not absorbed when taken by mouth and therefore is commonly used as a contrast agent for radiographic procedures. (cdc.gov)
  • Barium toxicity after exposure to contaminated contrast solution-Goias State, Brazil, 2003. (cdc.gov)
  • Rarely, severe allergic reactions of anaphylactoid nature have been reported following administration of barium sulfate contrast agents. (dysphagiacafe.com)
  • In contrast, the addition of barium sulphate produced a decrease of the tensile strength, but did not affect the fracture toughness and improved the crack propagation resistance. (umn.edu)
  • [ 10 ] These investigators reviewed the barium-contrast radiographs of 51 patients with manometrically diagnosed achalasia. (medscape.com)
  • The radiologic examination of choice in the diagnosis of achalasia is a barium swallow study performed under fluoroscopic guidance. (medscape.com)
  • Important diagnostic clues include retained saliva with a puckered gastroesophageal junction on endoscopy or a dilated esophagus with bird beaking on barium swallow. (medscape.com)
  • Barium swallow studies of achalasia are presented below. (medscape.com)
  • Barium swallow study demonstrating characteristics of achalasia, including the bird's beak deformity and a dilated esophagus. (medscape.com)
  • Lateral view from a barium swallow study demonstrating a dilated esophagus. (medscape.com)
  • Detail of a barium swallow study demonstrating the classic bird's beak deformity of the distal esophagus. (medscape.com)
  • Normal findings on a barium swallow study do not completely exclude achalasia, especially in the condition's early stages. (medscape.com)
  • VARIBAR ® THIN HONEY (barium sulfate) oral suspension, VARIBAR ® NECTAR (barium sulfate) oral suspension, and VARIBAR ® THIN LIQUID (barium sulfate) for oral suspension, are indicated for use in modified barium swallow examinations to evaluate the oral and pharyngeal function and morphology in adult and pediatric patients. (dysphagiacafe.com)
  • According to Schima and coworkers, approximately 90% of patients undergoing barium swallow examination for suspected achalasia have some esophageal dilation and a classic bird beak deformity. (medscape.com)
  • The combination of barium sulfate and zinc sulfide (ZnS) is the inorganic pigment called lithopone. (wikipedia.org)
  • Elemental barium and barium sulfide may be flammable in moist air (ATSDR 2005). (cdc.gov)
  • Also tell your doctor if your infant or young child has any condition that affects his or her esophagus, stomach, or intestine, or has had surgery involving the intestines.Your doctor may tell you or your child not to take barium sulfate. (medlineplus.gov)
  • 1973. The determination of trace amounts of barium in calcium carbonate by atomic- absorption spectrophotometry. (cdc.gov)
  • Ingestion of certain forms of barium (e.g., barium carbonate or barium fluoride) in toxic amounts can lead to gastrointestinal signs and symptoms (e.g., vomiting, abdominal pain, and watery diarrhea). (cdc.gov)
  • Shankle R, Keane JR. Acute paralysis from inhaled barium carbonate. (cdc.gov)
  • Barium sulfate is incompatible with aluminum and potassium (Lewis 2000). (cdc.gov)
  • 2000. Standard test method for barium in water, atomic absorption spectrophotometry, graphite furnace. (cdc.gov)
  • Barium sulfate comes as a powder to be mixed with water, a suspension (liquid), a paste, and a tablet. (medlineplus.gov)
  • Acute barium nitrate intoxication treated by hemodialysis. (cdc.gov)
  • Acute barium poisoning with respiratory failure and rhabdomyolysis. (cdc.gov)
  • Excessive blood levels of barium result in decreased blood potassium (hypokalemia), which may cause adverse cardiovascular and muscular effects such as tachycardia, increased or decreased blood pressure, muscle weakness, and paralysis. (cdc.gov)
  • Barium sulfate is usually taken one or more times before an x-ray examination or CT scan. (medlineplus.gov)
  • Barium sulfate in suspension is often used medically as a radiocontrast agent for X-ray imaging and other diagnostic procedures. (wikipedia.org)
  • For some particular applications, composites with high mass fraction (70-80%) of barium sulfate may be preferred to the more commonly used steel shields. (wikipedia.org)
  • Barium sulfate is also readily removed from the body, unlike Thorotrast, which it replaced. (wikipedia.org)
  • Barium Sulphate is used as a solder mask additive as it has fire retardant properties. (portaspecs.com)
  • The majority of synthetic barium sulfate is used as a component of white pigment for paints. (wikipedia.org)
  • At room temperature, barium is a silvery-white odorless metal that takes on a silvery-yellow color when exposed to air. (cdc.gov)
  • Severe hypokalemia induced by barium toxicity can cause ventricular dysrhythmias (1-7). (cdc.gov)
  • 1999. Standard test method for barium in brines, seawater, and brackish water by direct-current argon plasma atomic emission spectroscopy. (cdc.gov)
  • A thin layer of barium sulfate called baryta is first coated on the base surface of most photographic paper to increase the reflectiveness of the image, with the first such paper introduced in 1884 in Germany. (wikipedia.org)
  • Endoscopy, barium esophagram, and esophageal manometry are well-established tests that can diagnose achalasia. (medscape.com)
  • Barium is non-combustible, but may decompose upon heating to produce corrosive or toxic fumes (HSDB 2007a). (cdc.gov)
  • A clinically compatible case in which a high index of suspicion (credible threat or patient history regarding location and time) exists for barium exposure, or an epidemiologic link exists between this case and a laboratory-confirmed case. (cdc.gov)
  • Persons exposed to barium by inhalation do not pose secondary contamination risks. (cdc.gov)
  • This product should not be used in patients with known or suspected perforation of the GI tract, known obstruction of the GI tract, high risk of aspiration, or hypersensitivity to barium sulfate products. (dysphagiacafe.com)
  • Barium sulfate added to the mixture binds with these particles, making them heavier so they fall to the bottom, leaving a clearer solution. (wikipedia.org)
  • Barium sulfate is used in drilling muds, which are used to lubricate drill bits in oil- and gas-drilling industries. (cdc.gov)
  • It occurs as the mineral barite, which is the main commercial source of barium and materials prepared from it. (wikipedia.org)
  • If you are taking barium sulfate by mouth, you may be given the medication after you arrive at the testing center or you may be given the medication to take at home at specific times the night before and/or the day of your test. (medlineplus.gov)
  • You may also be told to use laxatives to clear the barium sulfate from your body after your test. (medlineplus.gov)
  • Your doctor will tell you whether you should take your medications on the day of your test and whether you should wait a certain amount of time between taking your regular medications and taking barium sulfate. (medlineplus.gov)
  • Barium esophagram can serve as a complementary test when manometric findings are equivocal. (medscape.com)
  • In metal casting, the moulds used are often coated with barium sulfate in order to prevent the molten metal from bonding with the mould. (wikipedia.org)
  • 1983. Particulate forms of radium and barium in uranium mine waste waters and receiving river waters. (cdc.gov)
  • One major manufacturer of artists' oil paint sells "permanent white" that contains a mixture of titanium white pigment (TiO2) and barium sulfate. (wikipedia.org)

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