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All of the following are true concerning V/Q ratios EXCEPT:
All of the following are true concerning V/Q ratios EXCEPT:
   
   
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D. Deadspace is represented by a V/Q value of 0.5.
D. Deadspace is represented by a V/Q value of 0.5.
 
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==Answer==
==Answer==
The answer is D.  Deadspace ventilation is represented by a value of infinity and certainly >0.5.  All other choices are correct.
The answer is D.  Deadspace ventilation is represented by a value of infinity and certainly >0.5.  All other choices are correct.
==Notes==
==Notes==
<references />
<references />


==Keywords==
==Keywords==
:


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Latest revision as of 22:22, 23 January 2022

All of the following are true concerning V/Q ratios EXCEPT:

A. In an awake, spontaneously breathing patient, the normal matching of V/Q is 0.8

B. An absolute shunt has a V/Q value of 0.

C. Hypoxic pulmonary vasoconstriction (HPV) is an intrapulmonary mechanism that attempts to minimize V/Q mismatching.

D. Deadspace is represented by a V/Q value of 0.5.

Click for Answer

Answer

The answer is D. Deadspace ventilation is represented by a value of infinity and certainly >0.5. All other choices are correct.

Notes


Keywords



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