flow (flo)
peak expiratory flow,
1. the movement of a liquid or gas.
2. the rate at which a fluid passes through an organ or part, expressed as volume per unit of time.
blood flow
1. circulation (of the blood).
2. circulation rate.
effective renal blood flow (ERBF) that portion of the total blood flow through the kidneys that perfuses functional renal tissue such as the glomeruli.
effective renal plasma flow (ERPF) the amount of plasma that perfuses the renal tubules per unit time, generally measured by the clearance rate of -aminohippurate.
forced expiratory flow (FEF) the rate of airflow recorded in measurements of forced vital capacity.
maximum expiratory flow the rate of airflow during a forced vital capacity maneuver, often specified at a given volume.
maximum midexpiratory flow the average rate of airflow measured between exhaled volumes of 25 and 75 per cent of the vital capacity during a forced exhalation.
peak expiratory flow (PEF) the greatest rate of airflow that can be achieved during forced exhalation beginning with the lungs fully inflated.
renal plasma flow (RPF) the amount of plasma that perfuses the kidneys per unit time, approximately 10 per cent greater than the effective renal plasma flow.
peak expiratory flow (p k)n. The maximum flow of air at the outset of forced expiration, which is reduced in proportion to the severity of airway obstruction, as in asthma. |
peak expiratory flow,
the greatest rate of airflow that can be achieved during forced expiration, beginning with the lungs fully inflated. Also called peak expiratory flow rate.
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