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- Oct 10, 2014
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Answer is D
I was stuck between A and D.
Reasoning for A: low calcium à increased PTH release à digesting bone to release more Ca and phosphate à increased serum phosphate
Reasoning for D: because serum phosphate now increases due to above reasoning, its reabsorption in tubule will decrease
My question is how would I know to choose the right one? I’ve frequently encountered this sort of problem before, where one choice ends the line of reasoning early on but another choice can be seen as a continuation in reasoning from that previous choice.
I was stuck between A and D.
Reasoning for A: low calcium à increased PTH release à digesting bone to release more Ca and phosphate à increased serum phosphate
Reasoning for D: because serum phosphate now increases due to above reasoning, its reabsorption in tubule will decrease
My question is how would I know to choose the right one? I’ve frequently encountered this sort of problem before, where one choice ends the line of reasoning early on but another choice can be seen as a continuation in reasoning from that previous choice.