Question

A 63-year-old with HTN and HLD presents with chest pain; ECG nondiagnostic; hs‑cTn elevated above 99th percentile and rising. According to 2021 guideline, what is the preferred biomarker strategy?

Accepted Answer

Use high‑sensitivity troponin with serial measurements for diagnosis

Answer

Use CK‑MB and myoglobin as primary markers

Answer

Single hs‑cTn at presentation is sufficient

Answer

Rely on conventional troponin at 6-12 hours only

Answer

No biomarkers needed if ECG normal

Practice question

A 63-year-old with HTN and HLD presents with chest pain; ECG nondiagnostic; hs‑cTn elevated above 99th percentile and rising. According to 2021 guideline, what is the preferred biomarker strategy?