Question

A 72-year-old man with stage 4 chronic kidney disease (eGFR 22 mL/min/1.73 m²) presents with vague chest discomfort and dyspnoea. High-sensitivity troponin T is 80 ng/L (reference <14 ng/L) and a repeat sample 3 hours later is 82 ng/L. ECG shows no new ischaemic changes and he is haemodynamically stable. How should these troponin results be interpreted?

Accepted Answer

They are chronically elevated; the absence of a significant dynamic rise makes acute myocardial infarction unlikely

Answer

They confirm an acute myocardial infarction requiring immediate reperfusion

Answer

They exclude myocardial infarction because troponin is below 1000 ng/L

Answer

They indicate unstable angina rather than myocardial infarction

Answer

They indicate demand ischaemia (type 2 myocardial infarction) without need for further investigation

Practice question