Which laboratory performs EKGs and cardiac stress tests?

• A. Cardiology Laboratory
• B. Pathology Laboratory
• C. Microbiology Laboratory
• D. Biochemistry Laboratory

Answer: (A)

Tests that measure the heart’s electrical activity and how the heart handles exertion are done in the cardiology lab. An EKG records the heart’s electrical signals to spot rhythm problems, blocks, or damage. A cardiac stress test checks how the heart works under increased activity, usually with a treadmill or medication, and requires interpretation by clinicians trained in heart disease. These capabilities come from a specialty focused on heart health, which is why a cardiology lab is the appropriate setting.

Other labs focus on different areas: pathology analyzes tissues and cells, microbiology identifies infectious agents, and biochemistry measures chemical substances in the blood. They don’t routinely perform heart electrical testing or stress testing.