Loading...
  • occur
  • The strip is then left to stand for the time necessary for the reactions to occur (usually 1 to 2 minutes), and finally the colours that appear are compared against the chromatic scale provided by the manufacturer. (wikipedia.org)
  • However, when the serum is diluted, the blocking antibody is as well and its concentration decreases enough for the proper precipitation reaction to occur. (wikipedia.org)
  • Francisella tularensis, Escherichia coli, Salmonella urbana, Yersinia enterocolitica, Vibrio cholerae, and Stenotrophomonas maltophilia) the appearance of cross-reactions of class M immunoglobulins may occur. (wikipedia.org)
  • With nontreponemal tests, false-positive reactions can occur for a large number of reasons, the most common of which is other infections, both viral and bacterial. (wikipedia.org)
  • yields
  • The test involves placing a faecal sample on guaiac paper (containing a phenolic compound, alpha-guaiaconic acid, extracted from the wood resin of Guaiacum trees) and applying hydrogen peroxide which, in the presence of blood, yields a blue reaction product within seconds. (wikipedia.org)
  • immune
  • This is done weeks after the initial reaction to allow the immune system to reset itself. (wikipedia.org)
  • It was first proposed by B. Magnusson and Albert Kligman in 1969 and described in their 1970 book Allergic Contact Dermatitis in the Guinea Pig The test animals are exposed intradermally to the test material, along with an adjuvant to enhance the immune reaction of the guinea pig. (wikipedia.org)
  • findings
  • None of these six research groups to report negative findings - which in the case of the UK included Professor John Gow, Dr Jonathan Kerr and Dr Jonathan Stoye and used patient samples from physicians including Dr Abhijit Chaudhuri and Professor Peter Behan - have been able to find XMRV in blood samples from ME/CFS patients, or in the healthy controls. (meassociation.org.uk)
  • specificity
  • In plasma, elevation of hydroxy-C18:1 acylcarnitine over the 95th centile of controls, in combination with an elevation of two of the three acylcarnitines C14, C14:1 and hydroxy-C16, identified over 85% of patients with high specificity (less than 0.1% false positive rate). (umassmed.edu)
  • species
  • A 3-10% solution of potassium hydroxide (KOH) gives a color change in some species of mushrooms: In Agaricus, some species such as A. xanthodermus turn yellow with KOH, many have no reaction, and A. subrutilescens turns green. (wikipedia.org)
  • patients
  • In 7 of the 28 pN+ patients (25%), metastases were also detected in non-SLN, thus giving a false-negative rate (FNR of 38.9% (7/18), a negative predictive value (NPV) of 61.1% (11/18), and an accuracy of 82.1% (32/39). (biomedsearch.com)
  • However, their usefulness is limited by decreased sensitivity in early primary syphilis and during late syphilis, when a large number of untreated patients will be negative by these methods. (wikipedia.org)
  • rate
  • Our hypothesis is that the intervention group will have less variability as measured by mean deviation between exams and greater reliability as measured by the standard unreliability indexes of false positive rate, false negative rate, and fixation losses. (clinicaltrials.gov)
  • expectations
  • I felt that referencing them in Daria, while we were trying to establish the new characters and the different type of humor, ran the risk of setting up false expectations and disappointment in the viewers - which could lead to a negative reaction to the new show and its different tone. (wikipedia.org)
  • children
  • Thrombosis and subsequent recanalization of a ruptured intracranial aneurysm in 2 children, demonstrating the value of repeating catheter angiography after an initial negative study. (biomedsearch.com)
  • The cases of 2 children with true aneurysmal subarachnoid hemorrhages (SAHs) and initial false-negative angiograms are reported. (biomedsearch.com)
  • Children, especially those younger than 2 years, are more likely than adults to have a negative monospot test (25%-50%), even when they have mono. (microbeonline.com)
  • specific
  • reactions to specific food groups (seafood) about 14 years ago, and since then I have added in a few other foods, but I stay away from similar foods just to be sure (IE: reactions to mango, but I stay away from tropical fruits as well. (healingwell.com)
  • Paper strips are often specific to a single reaction (e.g. pH measurement), while the strips with pads allow several determinations simultaneously. (wikipedia.org)
  • turn
  • The number of customers at the bank increases, as does their annoyance and excitement, which in turn fuels the false rumours of the bank's insolvency and upcoming bankruptcy, causing more customers to come and try to withdraw their money. (wikipedia.org)
  • lower
  • They gave me 2 steriod shots in my lower back area to block the histamine reaction from going through my body. (healingwell.com)
  • A responder reacts false positive if the degree of effectiveness of the placebo-FJI is the same or better than the response to LA. A patient reacts false negative if the pain diminution after LA application is lower than after placebo. (egms.de)