Which of the following is the most likely diagnosis? A. Unstable angina B. Acute pericarditis C. Myocardial infarction

Understand the Problem

The question presents a medical case study involving a 60-year-old man with chest discomfort and an ECG finding. It asks for the most likely diagnosis based on the information provided.

Answer

Unstable angina

The most likely diagnosis is unstable angina.

More Information

Unstable angina involves chest pain due to partial blockage of a coronary artery. It does not cause myocardial necrosis, thus cardiac enzymes remain normal. ECG changes like ST depression may appear transiently.

Tips

Confusing unstable angina with myocardial infarction; remember MI typically features elevated cardiac enzymes.

Sources

Acute Chest Pain in Adults: Outpatient Evaluation - AAFP - aafp.org
Acute Coronary Syndromes: Diagnosis and Management, Part I - PMC - pmc.ncbi.nlm.nih.gov
Acute Coronary Syndromes (Heart Attack; Myocardial Infarction - merckmanuals.com

AI-generated content may contain errors. Please verify critical information

Thank you for voting!