Cardiac Biomarkers

Cardiology

High-sensitivity troponin, CK-MB, BNP/NT-proBNP.
hsTnCK-MBBNPNT-proBNP

Raised troponin

Common causes

  • ACS
  • Myocarditis
  • PE
  • Sepsis
  • CKD
  • Tachyarrhythmia

Significance: Use 0/1h or 0/3h pathway and clinical context (chest pain + ECG).

Differential diagnosis

  • STEMI/NSTEMI
  • Type 2 MI
  • Myocarditis
  • Takotsubo

Next investigations

  • Serial troponin
  • 12-lead ECG
  • Echo
  • Coronary angiography if indicated

Red flags

  • Dynamic rise/fall with chest pain
  • ST elevation = activate cath lab

Educational support only — not a substitute for clinical judgment.

WardRound

WardRound

Clinical Decisions in Seconds