A patient presents two hours after the onset of chest pain. Which marker is most likely to be increased at thi…

Question

A patient presents two hours after the onset of chest pain. Which marker is most likely to be increased at this early time point?

Accepted Answer

보기 3: Myoglobin

Myoglobin is a small molecule and appears in the circulation earliest after myocardial injury, but it also rises with skeletal muscle damage, so its specificity is low. Troponin is far more specific but takes longer to rise. Read the stem carefully to see whether early rise or specificity is being asked.

Answer

보기 1: Cardiac troponin only

Answer

보기 2: Lactate dehydrogenase

Answer

보기 4: Alkaline phosphatase

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A patient presents two hours after the onset of chest pain. Which marker is most likely to be increased at this early time point?

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