Certified Clinical Medical Assistant Exam Practice Question
Which of the following methods of cardiovascular testing evaluates heart function over 24 hr or more?
Correct Answer: B
Rationale: The Holter monitor is a portable device that continuously records heart activity over 24 hours or more, allowing for comprehensive assessment of heart function during daily activities.
In contrast, a 12-lead EKG captures heart activity at a single point in time and does not provide long-term data. The nuclear stress test evaluates heart function during exercise but is conducted over a few hours, not days. Lastly, the tilt-table test assesses how the body responds to changes in position, primarily to diagnose causes of fainting, and does not measure heart function over an extended period.
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