Medicine Patient is having normal CK & CKMB after 2 days of chest pain which of the following is true A Excludes diagnosis of MI B Reperfusion after MI C Extracardiac source of pain D Cardiac surgery 💡 Explanation Patient is having normal CK & CKMB after 2 days of chest pain which of the following is true ✓ Correct Answer: A. Excludes diagnosis of MI