Head Upright Tilt Test (HUT, tilt table test, head-up tilt test)

headupright

Definition: The head upright tilt test is an experiment used to diagnose the cause of fainting spells. The test measures how your heart rate and blood pressure respond to the force of gravity while lying on a table that is slowly tilted upward from a 60 to 80 degree angle. During the test a technician or nurse records your heart rate and blood pressure to see how they change during the test.

Example: Your physician may order a tilt-table test for you to help them figure out why you feel lightheaded, faint, or have completely passed out. The feeling of fainting or of being lightheaded maybe caused by a number of things such as severe dehydration, arrhythmias, low blood sugar, certain medications, prolonged bed rest, or certain nervous system disorders. A very slow heart rate, referred to as bradycardia, can cause fainting.

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