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Move the marker back to the bottom, and repeat these steps two more times. If you cough or make a mistake, do not include this as one of your three tries.
Record the highest of the three numbers in your peak flow diary.

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Review Date: 05/01/2011
Reviewed By: David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Denis
Hadjiliadis, MD, Assistant Professor of Medicine, Division of
Pulmonary, Allergy and Critical Care, University of Pennsylvania,
Philadelphia, PA.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
