Question

which condition means deficiency of oxygen in blood, usually a sign of respiratory impairment: a anoxia b hypoxia c hypoxemia d hypercapnia

Explanation:

• Anoxia (A) is a total lack of oxygen supply to tissues, not specifically blood oxygen deficiency.
• Hypoxia (B) refers to a deficiency of oxygen in tissues, not blood.
• Hypoxemia (C) is defined as a deficiency of oxygen in the blood, which matches the description of the condition related to respiratory impairment.
• Hypercapnia (D) is an excess of carbon dioxide in the blood, not related to oxygen deficiency in blood.

Answer:

C. hypoxemia