Question

A 45-year-old with suspected ACS but nondiagnostic ECG and negative initial hs-cTn requires serial testing. What interval is endorsed for hs-cTn-based rule-out pathways?

Accepted Answer

Use validated 0/1-hour or 0/2-hour algorithms

Answer

Single troponin is sufficient

Answer

Repeat at 6-12 hours only

Answer

Repeat only if symptoms worsen

Answer

24-hour repeat mandatory

Practice question

A 45-year-old with suspected ACS but nondiagnostic ECG and negative initial hs-cTn requires serial testing. What interval is endorsed for hs-cTn-based rule-out pathways?