Peak Expiratory Flow

Question 1

What are the instructions for peak expiratory flow?

Answer 1

1. Wash your hands
2. Zero device
3. Patient should stand
4. Maximum inspiration
5. Airtight seal, peak flow level
6. Hold horizontally so that fingers do not tough sliding component
7. Forcefully exhale as rapidly as possible into the meter
8. Read from scale
9. Record best of three attempts
10. Dispose of mouthpiece
11. Calculate PEFR

Question 2

Describe how a patient should track their peak expiratory flow

Answer 2

1. Perform technique
2. Explain X and Y axis
3. 3 x a day for two weeks, then review
4. Readings taken before and 15 minutes after beta agonist are sometimes helpful
5. Explain expected PEFR (male normal is up to -100, female is 85)
6. Show an example of a completed chart
7. Check understanding of asthma