maximum breathing capacity


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max·i·mum vol·un·tar·y ven·ti·la·tion (MVV),

the volume of air breathed when a person breathes as deeply and as quickly as possible for a given time (for example, 15 seconds.). Usually extrapolated to what could be breathed over 1 minute.

maximum breathing capacity (MBC)

[mak′səməm]
Etymology: L, maximus, greatest; AS, braeth + L, capacitas
the maximum volume of gas that a person can inhale and exhale per minute by breathing as quickly and deeply as possible. Also called maximal breathing capacity.

maximum voluntary ventilation

(1) A measure of the maximum amount of air that can be inhaled and exhaled in one minute. For the comfort of the patient, this is done over a 15-second time period , which is then extrapolated to a value for a minute (expressed as litres/minute). The range for males is 140–180 L/minute; for females, 80–120 L/minute.

Indications
Evaluation of preoperative pulmonary function, pulmonary disability, and prediction of ventilatory reserve.

(2) A nonspecific benchmark of the integrated functionality of the airways, lung tissue, thoracic cage and respiratory muscles.

max·i·mum vol·un·tar·y ven·ti·la·tion

(MVV) (mak'si-mŭm vol'ŭn-tar-ē ven'ti-lā'shŭn)
The volume of air breathed when an individual breathes as deeply and as quickly as possible for a given time.
Synonym(s): maximum breathing capacity.
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