The Respiratory Therapist Is Evaluating a Patient in the Intensive

Multiple Choice

The respiratory therapist is evaluating a patient in the intensive care unit who shows signs of tissue hypoxia. Laboratory results reveal the following: HgB 14.8 grams, CaO₂ 19.6 vol.%, PaO₂ 102 mm Hg, a-v difference 9.8 vol.%, PvO₂ 24 mm Hg. Based on these results, which of the following types of hypoxia does this patient have?

A) Hypoxic hypoxia
B) Anemic hypoxia
C) Circulatory hypoxia
D) Histotoxic hypoxia