LOINC long common name : Deprecated PhenX measure - respiratory - peak expiratory flow rate - PEFR;
LOINC description : The peak expiratory flow rate measures airflow (maximum speed of expiration) and the
presence and degree of obstruction in the airways. This test is commonly used to diagnose
and monitor lung diseases such as Asthma; less commonly, it is used in Chronic Obstructive
Pulmonary Disease (COPD).;