The tilt table test is used to evaluate dizziness and fainting by checking the heart rate and blood pressure when you change positions from lying down to standing. This test is performed on patients who suffer from frequent syncope (fainting spells) and are suspected to have vasovagal syncope. This is caused by a malfunction of the nerves that control the action of the heart and blood vessels. Tilting the table under observation allows us to evaluate the physiologic change by watching blood pressure and heart rates.