Polycythemia develops in clients with lung disease as a result of:
A) Hyperventilation
B) Chronic hypoxia
C) Decreased blood viscosity
D) Excessive respiratory fluid loss
Ans: B
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Secondary polycythemia results from a physiologic increase in the level of erythropoietin, commonly as a compensatory response to hypoxia. Conditions causing hypoxia include living at high altitudes, chronic heart and lung disease, and smoking.
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