Purpose: To estimate the peak expiratory flow (PEF) in an adult to identify airflow obstruction, particularly in asthma.			Citations with documentation. 08.01.05	Sriram & Svirbely 1998
conversion	enter
height in inches		inches equals	0	centimeters
data	enter
Are you trying to estimate a person's peak expiratory flow? (Y or N)		:-):-):-)
gender of patient (enter M or F)		:-):-):-)
age in years		years
height in centimeters		cm
Is the patient's peak expiratory flow known? (Y or N)		:-):-):-)
peak expiratory flow in L/min		L/min
calculate	result
data complete?	Yes
evaluation appropriate?	Yes	:-):-):-)
predicted PEF for age, gender and height in L/min	590	L/min
observed PEF as percent of expected	83%	of expected
	male	female
LN(PEF in L/min)	6.38	6.18
PEF in L/min	590.4	483.2