What does a systolic BP drop ≥10 mmHg without ischemia during a Symptom-Limited Test indicate?

What does a systolic BP drop ≥10 mmHg without ischemia during a Symptom-Limited Test indicate?

• A. It indicates hemodynamic instability, and the test should be terminated immediately.
• B. It indicates the patient has improved cardiovascular fitness.
• C. It indicates a temporary measurement error that can be ignored if asymptomatic.
• D. It may indicate hemodynamic instability, but continuation can be considered if asymptomatic.

Answer: (D)

During a symptom-limited exercise test, systolic blood pressure should rise as workload increases. A drop of 10 mmHg or more from baseline while still exercising—even in the absence of ischemia—signals potential hemodynamic instability or impaired cardiac performance. This isn’t a normal response and requires careful monitoring. If the patient remains asymptomatic and hemodynamically stable after the drop, continuation of the test can be considered with caution, though you must be ready to stop if the blood pressure falls further or new symptoms develop. This finding does not indicate improved fitness, and it isn’t safe to ignore a potential measurement issue, but with vigilant observation, continuing may be appropriate in someone who remains asymptomatic.

During a symptom-limited exercise test, systolic blood pressure should rise as workload increases. A drop of 10 mmHg or more from baseline while still exercising—even in the absence of ischemia—signals potential hemodynamic instability or impaired cardiac performance. This isn’t a normal response and requires careful monitoring. If the patient remains asymptomatic and hemodynamically stable after the drop, continuation of the test can be considered with caution, though you must be ready to stop if the blood pressure falls further or new symptoms develop. This finding does not indicate improved fitness, and it isn’t safe to ignore a potential measurement issue, but with vigilant observation, continuing may be appropriate in someone who remains asymptomatic.