*  Peak expiratory flow rate legal definition of Peak expiratory flow rate
Definition of Peak expiratory flow rate in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is Peak expiratory flow rate? Meaning of Peak expiratory flow rate as a legal term. What does Peak expiratory flow rate mean in law?
  http://legal-dictionary.thefreedictionary.com/Peak+expiratory+flow+rate
*  NewYork-Presbyterian/Queens - Peak Flow Measurement
Peak flow measurement is a procedure in which air flowing out of the lungs is measured. The measurement obtained is called the peak expiratory flow rate (PEFR), or peak expiratory flow (PEF).. Peak flow measurement may be obtained using a spirometer, an instrument with a mouth piece that measures the amount of air breathed in and/or out and the rate at which the air is inhaled and expelled from the lungs. Peak flow may also be measured with a peak flow meter (PFM), a portable, hand-held device. Both devices take the measurement as an individual forcefully blows into the mouthpiece of the device.. Spirometry is usually performed in a doctor's office, clinic, or a hospital. A peak flow meter ...
  http://www.nyhq.org/diw/Content.asp?PageID=DIW007755&More=DIW&language=Korean
*  Household airborne Penicillium associated with peak expiratory flow variability in asthmatic children
PubMed Central Canada (PMC Canada) provides free access to a stable and permanent online digital archive of full-text, peer-reviewed health and life sciences research publications. It builds on PubMed Central (PMC), the U.S. National Institutes of Health (NIH) free digital archive of biomedical and life sciences journal literature and is a member of the broader PMC International (PMCI) network of e-repositories.
  http://pubmedcentralcanada.ca/pmcc/articles/PMC2746059/?lang=en-ca
*  Patent US7390305 - Peak flow meter - Google Patents
A peak flow meter is described with a body having a sample channel and at least one bypass channel. One of at least two flow range scales may be selected using a flow range selector to adjust the sensitivity of the peak flow meter. A flow range selection indicator provides visual reference as to which flow range scale has been selected. A peak flow calculator used in cooperation with zone indicators on the peak flow meter permits a user to customize the peak flow meter for that user's predicted personal best exhalation range.
  http://www.google.com/patents/US7390305?dq=7,173,247
*  PEF versus FEV1 | Thorax
authors' reply Dr Gregg's remarks on our paper concern four major points: (1) the differences between the Micro medical spirometer and the mini-Wright peak flow meter; (2) the choice of predicted values; (3) the "dissimilar manner" in which changes in PEF were compared with changes in FEV1; and (4) the use of changes in FEV1 rather than changes in the FEV1/FVC ratio.. (1) It is true that there are differences between the two devices based upon the different principles-turbine flow measurement and variable orifice peak flow measurement. As we stated in the discussion part of the paper, the turbine flow meter yields slightly lower values than a pneumotachograph1-1 1-2 and the variable orifice peak flow meter shows significantly higher values (200-300 l/min) than a pneumotachograph in the mid region.1-3 In both cases the pneumotachograph value is considered the reference value. ...
  http://thorax.bmj.com/content/55/9/807.1
*  Effect of aerobic exercise training on peak expiratory flow rate: a pragmatic randomized controlled trial::BioMedSciDirect...
Author: Chaitra B , Vijay Maitri :: Abstrct Background Aerobic Exercise Is An Important Component Of Pulmonary Rehabilitation For Patients With Chronic Obstructive Pulmonary Disease (copd). There Are Few Studies On Aerobic Exercise And Pulmonary Function In General Population. This Study Was...
  https://www.biomedscidirect.com/266/effect_of_aerobic_exercise_training_on_peak_expiratory_flow_rate_a_pragmatic_randomized_controlled_trial/articles
*  Atopy, bronchial hyperresponsiveness, and peak flow variability in children with mild occasional wheezing. | Thorax
BACKGROUND: Children who suffer from recurrent wheezy episodes are often promptly classified as asthmatic. The aim of this study was to evaluate a population of mild wheezy children with repeatedly normal spirometric tests at rest for atopy, bronchial hyperresponsiveness, and peak expiratory flow variability. METHODS: Thirty nine children aged 6-16 years with 1-12 wheezy attacks during the previous year were recruited from a community paediatric primary health care clinic serving an urban Israeli population. The conditions for inclusion were a physician-diagnosed wheeze on auscultation and normal spirometric tests at rest on at least three occasions. Evaluation included skin prick tests for atopy and a physician-completed questionnaire. In addition, two tests of bronchial hyperresponsiveness (BHR) were performed--namely, exercise-induced bronchospasm and inhaled methacholine hyperresponsiveness--as well as diurnal variability of peak ...
  http://thorax.bmj.com/content/51/3/272
*  The accuracy of portable peak flow meters. | Thorax
BACKGROUND: The variability of peak expiratory flow (PEF) is now commonly used in the diagnosis and management of asthma. It is essential for PEF meters to have a linear response in order to obtain an unbiased measurement of PEF variability. As the accuracy and linearity of portable PEF meters have not been rigorously tested in recent years this aspect of their performance has been investigated. METHODS: The response of several portable PEF meters was tested with absolute standards of flow generated by a computer driven, servo controlled pump and their response was compared with that of a pneumotachograph. RESULTS: For each device tested the readings were highly repeatable to within the limits of accuracy with which the pointer position can be assessed by eye. The between instrument variation in reading for six identical devices expressed as a 95% confidence limit was, on average across the range of flows, ...
  http://thorax.bmj.com/content/47/11/904
*  NIOSHTIC-2 Publications Search - 00228495 - Comparing MiniWright and spirometer measurements of peak expiratory flow.
A study was conducted on the use of scales obtained using a mechanical pump or traditional human population test results for accuracy and variability testing of peak expiratory flow (PEF) meters. MiniWright PEF meters were tested using a mechanical pump simulator and traditional scale values were converted to mechanical scale values using an equation provided by the manufacturer of the PEF meters.
  https://www.cdc.gov/niosh/nioshtic-2/00228495.html
*  Tips From Other Journals - American Family Physician
Children who present to the emergency department during a severe exacerbation of asthma are typically treated with inhaled beta agonists and corticosteroids. Despite optimal use of these agents, many children require hospital admission for continued treatment. Several studies have shown that pulmonary function improves when the anticholinergic agent ipratropium bromide is given with a beta agonist, such as albuterol. Qureshi and colleagues conducted a randomized, double-blind, placebo-controlled trial to evaluate whether the addition of inhaled ipratropium decreased hospitalization rates in children who presented to the emergency department with an acute episode of asthma.. Children between the ages of two and 18 years who presented to the emergency department with an acute episode of asthma were eligible for the study. The severity of the asthma at presentation was classified according to the predicted peak expiratory flow ...
  https://www.aafp.org/afp/1999/0301/p1276.html
*  ACSM | Articles
The most accurate test is a spirometry (hand-held electronic device measuring lung function) performed before and after the specific exercise the subject is doing. Since many doctors do not have spirometers in their office, this is not a common test. However, most allergists do have these machines. The test is commonly used by U.S. Olympic Committee sports physiologists to screen athletes for EIB.. Another test that can be done is a peak flow rate, which can be done with an inexpensive hand-held device, to measure the peak expiratory flow rate of the lungs before and after exercise. However, this is not as accurate as a spirometer. In case there is no spirometer or peak flow meter available, the physician may prescribe a treatment (inhaler) for EIB. If that treatment is effective, it usually confirms the diagnosis.. What are ...
  http://www.acsm.org/public-information/articles/2016/10/07/exercise-induced-bronchospasm-what-is-it-and-who-has-it-
*  Asthma: Peak Expiratory Flow and Personal Best - Mary Greeley Medical Center
A person's personal best is his or her highest peak flow. This is a number you can use to find the correct asthma zones. The personal best may be used in the written plan that says what to do during a sudden increase in asthma symptoms (asthma attacks).. You determine your or your child's personal best by taking PEF readings over 2 to 3 weeks when the asthma is under control-when you or your child feels good and has no symptoms. During these weeks, peak expiratory flows should be recorded at least twice daily. The personal best is usually reached in the afternoon or evening. Personal best measurements are never measured during an asthma attack.. Your personal best is the highest reading you have over this period of time.. Personal best measurement needs to be evaluated once in a while to see whether it has changed. If it decreases, medicines may need to be changed or increased to prevent asthma from becoming worse. If ...
  http://www.mgmc.org/wellness/health-library/healthwise-document-viewer/?id=aa126622
*  Spacers and Peak Flow Meters | LloydsPharmacy
A peak flow meter is a device that you blow into. It measures how much air you blow out in a set amount of time. The better controlled your asthma is, the harder you'll be able to blow out and the higher your reading will be. Keeping a diary of your peak flow readings is a more accurate way of showing how well managed your asthma is. It's also useful to show your doctor, asthma nurse and pharmacist at your review or check ups so they can check that your getting the most benefit from your medicine ...
  http://www.lloydspharmacy.com/en/info/spacers-and-peak-flow-meters
*  Word! Peak Flow Meter
Lots of kids who have asthma use a special tool called a peak flow meter to measure how quickly they can push air out of their lungs.
  http://kidshealth.org/KHovnanian/en/kids/word-peak-flow-meter.html
*  Plus it
The efficacy and tolerability of salmeterol, 50 micrograms b.i.d. was compared for three months with salbutamol, 200 micrograms q.i.d., administered from metered-dose inhaler. For the following nine months, safety and clinic lung function was monitored on salmeterol, 50 micrograms b.i.d., compared with salbutamol, 200 micrograms b.i.d. This comparison was made in a multicentre, double-blind, parallel-group study of 667 moderate asthmatics, who had a forced expiratory volume in one second (FEV1) or peak expiratory flow rate (PEFR) , 50% predicted, a 15% reversibility to inhaled salbutamol and who were experiencing symptoms. Throughout the first three month treatment period, both morning and evening PEFR were significantly higher on treatment with salmeterol than salbutamol (mean differences between the treatments 30 l.min-1 for morning, p , 0.001, and 11 l.min-1 for evening, p , 0.01). In ...
  http://erj.ersjournals.com/content/5/9/1062
*  Multimedia - Memorial Health System
Peak Flow Meter A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor what's going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your "personal best," and how to set your peak flow zones. ...
  http://mhsystem.staywellsolutionsonline.com/Conditions/COPD/Multimedia/
*  Plus it
STUDY OBJECTIVE--To determine whether salbutamol is more effective in treating severe asthma when given intravenously or by inhalation. DESIGN--Randomised trial of short term response to intravenous versus nebulised salbutamol in acute severe asthma. SETTING--District general hospital (secondary care centre). PARTICIPANTS--76 patients aged 16-70 admitted to hospital with acute severe asthma (peak expiratory flow rate less than 50% of predicted) during study period. Five withdrawn because of adverse effects of treatment or non-response. Of remaining 71, 34 allocated to nebuliser group and 37 to intravenous treatment group. Patients with history of cardiovascular disease or recent corticosteroid or intravenous bronchodilator treatment excluded. Admission characteristics similar in the two groups. INTERVENTIONS--All patients given 5 mg nebulised salbutamol on admission before randomisation plus 200 mg hydrocortisone bolus intravenously and 35% ...
  http://www.bmj.com/content/297/6646/448
*  A One Year Clinical Trial Assessing the Usefulness and Safety of Inhaled Insulin in Diabetics With Asthma - Full Text View -...
Subjects measured peak expiratory flow rate (PEFR) and forced expiratory volume in 1 second (FEV1) twice daily and entered the results in an electronic diary. Daily data were used to calculate the mean PEFR and FEV1 for each week (observed weekly mean and change from baseline in weekly mean). For each subject, the mean weekly morning (and evening) PEFR and FEV1 was defined as the sum of the daily morning (and evening) PEFR (and FEV1) measurements during the week divided by the number of non-missing PEFR (and FEV1) measurements during the week ...
  https://clinicaltrials.gov/ct2/show/study/NCT00139659?show_locs=Y
*  Modelling the effects of low indoor temperatures on the lung function of children with asthma | Journal of Epidemiology &...
Results The strongest association with lung function was found for the severity of exposure to low bedroom temperatures averaged over the preceding periods of 0-7 to 0-12 days. A 1°C increase in temperature was associated with an average increase of 0.010, 0.008, 10.06, 12.06, in our four measures of lung function (peak expiratory flow rate (PEFR) morning, PEFR evening, forced expiratory volume in 1 s (FEV1) morning and FEV1 evening).. ...
  http://jech.bmj.com/content/67/11/918
*  asthma Archives - Health Blog
The peak expiratory flow rate is a measure of the breath when air soon resumes bronchus. Simple, easy and fast, this measure is necessary to follow the evolution of the disease and adapt the treatment. Regular measurements can also predict a crisis.. The dynamics of the breath is an essential parameter in asthma because the reduction of the calibre of the bronchi characterizing the asthma attack must be quantifiable right away. The comparative measurement of respiratory volumes as well as respiratory force in crisis and in normal times is therefore a necessity for monitoring and the adaptation of an asthma treatment.. ...
  http://prohealthblog.com/tag/asthma
*  SERETIDE Vs FLIXOTIDE In Mild Persistent Asthma (GINAII) - Full Text View - ClinicalTrials.gov
Severe exacerbation: needed hospitalization/emergency unit visit. Moderate exacerbation: Needed oral cortico-steroid or adding inhaled Flixotide to maintenance study medicine; decrease in morning or evening peak expiratory flow (PEF) , 30% during ≥ 2 following days from Baseline (Day 0). Mild exacerbation: any night symptoms ≥ 3 consecutive, or night symptoms ≥ 2 consecutive nights in case symptoms have been scored ≥ 2 during at least one night, Day symptoms scored ≥ 2 during ≥ 4 following days, or Day symptoms scored ≥ 3 during ≥ 3 following days, or Day symptoms scored ≥ 4 during ≥ 2 following days, or rescue medication use ≥ 2 occasions per day for ≥ 4 following days, or rescue medication use ≥ 3 occasions per day for ≥ 3 following days, or rescue medication use ≥ 4 occasions per day for ≥ 2 following days, or decrease in morning/evening PEF ,20% during ≥ 2 following days from Baseline (Day 0). Number of total exacerbations and severe, ...
  https://clinicaltrials.gov/ct2/show/NCT00455923
*  NIOSHTIC-2 Publications Search - 00176758 - Clinical and immunologic studies among egg-processing workers with occupational...
Immunologic responses to inhaled egg protein in egg processing workers was studied. The subjects were 25 workers from a factory that processed eggs into powdered egg yolk or whole egg and liquid egg white. Procedures included an interview with a physician, physical examination, skin tests, measurement of peak expiratory flow rate (PEFR), and serologic testing. Asthmatic illness was classified in a
  https://www.cdc.gov/niosh/nioshtic-2/00176758.html
*  Plus it
Treatment with corticosteroids is prescribed in patients with COPD in order to improve the obstructive syndrome, alleviate the shortness of breath and the associated discomfort and there is evidence that such treatment is not only beneficial but sometimes even lifesaving 76, 77. A meta-analysis on the use of oral corticosteroid treatment (prednisolone between 30 mg·day−1 for 7 days and 60 mg·day−1 tapered to 20 mg·day−1 over 8 weeks) in patients with stable COPD found an effect size from 0-38%, depending on the outcome measures (0% when the outcome measures were arterial blood gas, carbon monoxide diffusing capacity of the lung, or subjective changes, 38% when outcome was assessed by the 12‐min walking distance, peak expiratory flow rate and dyspnoea score) 76. When the authors of the meta-analysis averaged the effect size and used FEV1 as criterion, it became obvious that oral corticosteroid therapy had a 20% improvement effect (10% more ...
  http://erj.ersjournals.com/content/22/46_suppl/64s
*  Centralising complaints a terrible idea, say GPs | News Article | Pulse Today
Taking oral or inhaled steroids as required for symptom relief could be as effective as continuous treatment for mild persistent asthma, US researchers suggest.. Their study found intermittent treatment with steroids and courses of daily treatment produced similar increases in morning peak expiratory flow of around 7.8 per cent and similar rates of asthma exacerbations.. The trial, published in the New England Journal of Medicine this week, randomised 225 patients to three groups - intermittent steroids or daily treatment with budesonide or zafirlukast. ...
  http://www.pulsetoday.co.uk/centralising-complaints-a-terrible-idea-say-gps/10906931.article
*  sogonaika.blogspot.com: 08 April 2007
Firstly, the only safe way to discharge patient is to know that their Peak Flow measurements are stable and not less than 25% of the normal predicted value for the patient's age and sex. If Peak Flow is not measured, the doctor has no formal means of assessing the severity of asthma and whether it is getting better or worse. Asthma patients can only be switched to inhalers once Peak Flow is stable and they still need to be hospitalised for at least another 24 hours and be stable on inhaler therapy before allowed to go home. Moreover, patients usually need several days of steroid therapy orally to reduce bronchial oedema associated with asthma and this cannot be cured by a 'one-off' shot of methylprednisolone ...
  http://sogonaika.blogspot.com/2007_04_08_archive.html