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Multiple Choice
Which of the following conditions would be least likely to result in hypoxia?
A
Obstruction of the airway
B
Impaired diffusion of oxygen across the alveolar membrane
C
Severe anemia
D
Increased oxygen delivery to tissues
Verified step by step guidance
1
Understand the concept of hypoxia: Hypoxia refers to a condition where there is insufficient oxygen reaching the tissues to meet their metabolic needs. It can result from various factors such as reduced oxygen delivery, impaired oxygen transport, or decreased oxygen utilization.
Analyze each condition provided in the question: Obstruction of the airway would limit oxygen intake, impaired diffusion of oxygen across the alveolar membrane would reduce oxygen transfer into the blood, and severe anemia would decrease the oxygen-carrying capacity of the blood. All of these conditions are likely to result in hypoxia.
Consider the condition 'Increased oxygen delivery to tissues': This condition implies that more oxygen is being transported to the tissues, which would counteract hypoxia rather than cause it. Increased oxygen delivery is least likely to result in hypoxia.
Compare the conditions: The first three conditions (airway obstruction, impaired diffusion, and anemia) directly reduce oxygen availability or transport, while increased oxygen delivery improves oxygen availability to tissues.
Conclude that the correct answer is 'Increased oxygen delivery to tissues,' as it is the least likely condition to result in hypoxia due to its positive impact on oxygen supply.