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Figure 2 | Critical Care

Figure 2

From: Oxygen-induced hypercapnia in COPD: myths and facts

Figure 2

Hypoxic pulmonary vasoconstriction. The left frame shows normal alveolar ventilation and perfusion. In the right frame, reduced ventilation (thus O2 tension) in the alveolus (green) leads to a reduced perfusion because of the hypoxic pulmonary vasoconstriction mechanism. Reprinted with permission from BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health [13].

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Critical Care

ISSN: 1364-8535