positive-negative pressure breathing

Medical Dictionary

positive-negative pressure breathing n.

Abbr. PNPB Inflation of the lungs with positive pressure and deflation with negative pressure as through the action of an automatic ventilator.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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