Reference Values of the Provocative Concentrations of Methacholine that Cause 6% and 20% Changes in Forced Expiratory Volume in One Second in a Normal Population

Malo, Jean‐Luc; Pineau, Line; Cartier, André; R. Martin, Richard

doi:10.1164/arrd.1983.128.1.8

Public

Reference Values of the Provocative Concentrations of Methacholine that Cause 6% and 20% Changes in Forced Expiratory Volume in One Second in a Normal Population

Published in American Review of Respiratory Disease • Jul 1, 1983

Authors:

Jean‐Luc Malo

Line Pineau

André Cartier

Abstract

The provocative concentrations of inhaled methacholine that cause 6% (PC6) and 20% (PC20) falls in forced expiratory volume in one second (FEV1) were assessed in a population of 100 nonsmoking persons, equally distributed for sex, who ranged uniformly from 20 to 60 yr of age. These subjects had no r...

Subject

Methacholine

Medicine

Asthma

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