- Current guidelines recommend performing peak expiratory flow (PEF) measurements while standing, but it's sometimes done with patients in bed, particularly during asthma treatment in hospitals.
- In a study involving 94 healthy adults, PEF was tested in three positions: standing, lying back at a 45° angle, and sitting slumped forward.
- Results showed that PEF values were significantly higher in the standing position compared to the other positions, suggesting healthcare providers should prioritize PEF readings taken when patients are standing.