A 46-year-old man has chest pain for 90 minutes. ECG is nondiagnostic, hs-cTn at 0 hour is normal. What is the recommended approach to ruling out MI?ASingle hs-cTn at presentation is sufficient to dischargeBUse a validated accelerated diagnostic pathway with serial hs-cTn at 0 and 1-3 hours with risk assessmentCAdmit all patients for 24-hour observation regardless of hs-cTnDRely on CK-MB and myoglobin instead of hs-cTnEPerform routine stress testing immediatelyCheck my answer