A patient complains of feeling lightheaded and having frequent fainting spells. Which test might the physician order to determine whether a drop in heart rate or blood pressure may be causing the patient's symptoms?

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The tilt table test is used to diagnose orthostatic hypotension, a condition where a person's blood pressure drops significantly when they stand up, leading to symptoms such as lightheadedness and fainting. During the test, the patient is strapped to a table that is tilted to an upright position, and their blood pressure and heart rate are monitored for changes.

A Patient Complains of Feeling Lightheaded and Having Frequent Fainting