Which sequence correctly matches the angina types? stable angina is triggered by activity; unstable angina may show transient ST changes; prinzmetal/variant angina is due to vasospasm.

Which sequence correctly matches the angina types? stable angina is triggered by activity; unstable angina may show transient ST changes; prinzmetal/variant angina is due to vasospasm.

• A. Unstable, stable, prinzmetal/variant
• B. Stable, unstable, prinzmetal/variant
• C. Stable, prinzmetal, unstable
• D. Prinzmetal, unstable, stable

Answer: (B)

Angina types are distinguished by what triggers the pain and what ECG changes you expect. Stable angina is caused by a fixed narrowing and reliably appears with activity, then eases with rest or nitroglycerin. Unstable angina is a progression where pain can occur at rest or with little exertion, and it may show transient ST changes on ECG as ischemia fluctuates. Prinzmetal (variant) angina comes from a transient coronary vasospasm, often at rest, and can produce transient ST-segment elevations during an episode. So the sequence that aligns with the described clues—activity-triggered stable angina, followed by unstable angina that may show transient ST changes, followed by vasospasm-driven prinzmetal angina—is the order stable, unstable, prinzmetal. The other sequences rearrange these descriptions and don’t fit the given statements.

Angina types are distinguished by what triggers the pain and what ECG changes you expect. Stable angina is caused by a fixed narrowing and reliably appears with activity, then eases with rest or nitroglycerin. Unstable angina is a progression where pain can occur at rest or with little exertion, and it may show transient ST changes on ECG as ischemia fluctuates. Prinzmetal (variant) angina comes from a transient coronary vasospasm, often at rest, and can produce transient ST-segment elevations during an episode.

So the sequence that aligns with the described clues—activity-triggered stable angina, followed by unstable angina that may show transient ST changes, followed by vasospasm-driven prinzmetal angina—is the order stable, unstable, prinzmetal. The other sequences rearrange these descriptions and don’t fit the given statements.