The tilt table test is used to find the cause for spells of fainting. To perform the test, the patient must be attached by the arms and feet on a special reclining table, and an intravenous catheter will be inserted into one arm while blood pressure is monitored through the other. In addition, to analyse the heart rate, a set of electrodes connected to an electrocardiograph obtains constant electrocardiograms during the test. The individual will see their heart rate altered to such an extent that they will eventually lose consciousness, just as in a fainting fit. This way, the detailed results of the test let the professional set pharmacological treatment to prevent the patient from suffering any more fainting.