the sum of the anatomic and alveolar dead spaces; its volume (VD) is determined by measuring the partial pressure of carbon dioxide in a sample of exhaled gas (PECO2) and in the arterial blood (PaCO2) and (with tidal volume of VT) using the formula VD/VT = (PaCO2 − PECO2)/PaCO2.
Found on
http://www.encyclo.co.uk/local/21001
(VD) Type: Term Definitions: 1. the sum of anatomic and alveolar dead space; the dead space calculated when the carbon dioxide pressure in systemic arterial blood is used instead of that of alveolar gas in the Bohr equation; it is a virtual or apparent volume that takes into account the impairment of gas ex...
Found on
http://www.medilexicon.com/medicaldictionary.php?t=83149
No exact match found.
