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词汇 Peak flow
分类 英语词汇 英语翻译词典
释义

Peak flow

英语百科

Peak expiratory flow

(重定向自Peak flow)
Normal values, shown on EU scale.[2]
This peak flow meter uses the EU scale.

The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) is a person's maximum speed of expiration, as measured with a peak flow meter, a small, hand-held device used to monitor a person's ability to breathe out air. It measures the airflow through the bronchi and thus the degree of obstruction in the airways.

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