In evaluating ischaemic heart disease, a patient with low to intermediate pre-test risk who has a normal resting ECG and is physically fit can proceed with which test?

In evaluating ischaemic heart disease, a patient with low to intermediate pre-test risk who has a normal resting ECG and is physically fit can proceed with which test?

• A. Proceed with exercise treadmill testing without imaging
• B. Order a perfusion imaging study first
• C. Proceed directly to coronary angiography
• D. No testing is indicated

Answer: (A)

The key concept is matching test choice to pre-test probability and what the resting ECG allows. In someone with low-to-intermediate pre-test risk for ischemic heart disease who has a normal resting ECG and can exercise, an exercise treadmill test without imaging is the most appropriate first noninvasive evaluation. It assesses how the heart responds to real-time stress, reveals ischemia through exercise-induced ST-T changes, and gauges functional capacity, all at lower cost and without radiation. This scenario doesn’t require imaging to confirm disease because the patient’s baseline ECG is normal and they can achieve adequate exercise. Imaging-based stress tests or nuclear perfusion studies are typically reserved when the resting ECG is abnormal or the patient cannot exercise, which would make the basic treadmill test nondiagnostic. Coronary angiography is invasive and generally reserved for cases with high risk or a clearly positive noninvasive test or ongoing symptoms despite management. So proceeding with exercise treadmill testing without imaging fits the patient’s risk level and functional status.

The key concept is matching test choice to pre-test probability and what the resting ECG allows. In someone with low-to-intermediate pre-test risk for ischemic heart disease who has a normal resting ECG and can exercise, an exercise treadmill test without imaging is the most appropriate first noninvasive evaluation. It assesses how the heart responds to real-time stress, reveals ischemia through exercise-induced ST-T changes, and gauges functional capacity, all at lower cost and without radiation. This scenario doesn’t require imaging to confirm disease because the patient’s baseline ECG is normal and they can achieve adequate exercise.

Imaging-based stress tests or nuclear perfusion studies are typically reserved when the resting ECG is abnormal or the patient cannot exercise, which would make the basic treadmill test nondiagnostic. Coronary angiography is invasive and generally reserved for cases with high risk or a clearly positive noninvasive test or ongoing symptoms despite management. So proceeding with exercise treadmill testing without imaging fits the patient’s risk level and functional status.