Difficulty: Medium
Average Score: 88%
Simulated
The nurse has received the laboratory results for a patient who developed chest pain 4 hours ago and may be having a myocardial infarction. Which laboratory test result should be most helpful in indicating myocardial infarction?
Correct answer
D
Rationale
Troponin is the most specific and sensitive biomarker for myocardial infarction, rising within 3-4 hours and remaining elevated for days.