breath-holding test

breath-holding test definition - medical

breath-holding test

noun
A test used as a rough index of cardiopulmonary reserve, measured by the length of time a person can hold his or her breath. Diminished cardiac or pulmonary reserve is indicated if one's breath is held for less than 20 seconds.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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