What is an expiratory flow rate

What is an expiratory flow rate

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The Peak Expiratory Flow Rate is a simple method of measuring airway obstruction and it will detect moderate or severe disease.

What is Peak Expiratory Flow Rate?

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The peak expiratory flow rate measures how fast a person can breathe out (exhale) air. It is one of many tests that measure how well your airways work.

How Peak expiratory flow rate is Performed

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This test requires a peak expiratory flow monitor: a small handheld device with a mouthpiece at one end and a scale with a moveable indicator (usually a small plastic arrow). To do this test: Breathe in as deeply as possible. Blow into the …

Related Questions Answered on Y!Answers

What is the normal peak expiratory flow rate (PEFR) of an adult?

Q:

A: The above answer is right. Need more infor. Here is a calculator that will answer your question:http://www.perinatology.com/calculators/peakc.htmHope that helps!

medical case study, please help!?

Q: Respiratory case study help please?A 150 lb, 62 year-old man had a chronic productive cough, exertional dyspnea, mild cyanosis, and marked slowing of forced expiration. His pulmonary function and laboratory tests follow:Frequency 16 breaths/minalveolar ventilation 4.2 L/min (Assume 150 ml anatomical dead space)vital capacity 2.2 Lfunctional residual capacity 4.0 Ltotal lung capacity 5.2 Lmaximum inspiratory flow rate 250 L/min maximum expiratory flow rate 20 L/minPaO2 62 mm HgPaCO2 39 mm HgPulmonary function tests after bronchodilator therapy:frequency 16 breaths/minalveolar ventilation 4.35 L/minVC 2.4 LFRC 4.0 LTLC 5.2 LMax inspiratory flow rate 250 L/minmax expiratory flow rate 23 L/minPaO2 62 mm HgPaCO2 38 mm HgQuestions:1. What is the disorder this man has?2. Is this primarily a restrictive or obstructive disorder? Why?3. Why is the bronchodilator therapy ineffective in this man?4. What causes hypoxemia?5. Calculate the residual volume (RV) for this person before and after the bronchodilator therapy.6. What is the cause of this altered RV?7. Calculate the tidal volume (TV) for this man before and after the bronchodilator therapy.8. Is each TV normal or altered?

A: I hope my next nurse actually did the course work before they are assigned to care for me.

respiratory case study help please?

Q: A 150 lb, 62 year-old man had a chronic productive cough, exertional dyspnea, mild cyanosis, and marked slowing of forced expiration. His pulmonary function and laboratory tests follow:Frequency 16 breaths/minalveolar ventilation 4.2 L/min (Assume 150 ml anatomical dead space)vital capacity 2.2 Lfunctional residual capacity 4.0 Ltotal lung capacity 5.2 Lmaximum inspiratory flow rate 250 L/min maximum expiratory flow rate 20 L/minPaO2 62 mm HgPaCO2 39 mm HgPulmonary function tests after bronchodilator therapy:frequency 16 breaths/minalveolar ventilation 4.35 L/minVC 2.4 LFRC 4.0 LTLC 5.2 LMax inspiratory flow rate 250 L/minmax expiratory flow rate 23 L/minPaO2 62 mm HgPaCO2 38 mm HgQuestions:1. What is the disorder this man has?2. Is this primarily a restrictive or obstructive disorder? Why?3. Why is the bronchodilator therapy ineffective in this man?4. What causes hypoxemia?5. Calculate the residual volume (RV) for this person before and after the bronchodilator therapy.6. What is the cause of this altered RV?7. Calculate the tidal volume (TV) for this man before and after the bronchodilator therapy.8. Is each TV normal or altered?

A: If you make the effort I will help you. You are training to be a RN or a RT. You are expected to know the answers to these questions.Type the answers and I will check them out for you. You can find some answers to your question at the sites given.http://healthmad.com/nursing/respiratory-terminology-for-nurses-self-learn-series-13/