21 March 2019 What is a tilt test? The tilt test is one of the tests that can be carried out to determine the cause of fainting spells. Who can be given the tilt test? It is always for the doctor to decide whether there is a need for a particular test, depending on the individual characteristics of each person and their complaints or illness. As well as people who faint frequently, this examination may also be indicated for patients who suffer from orthostatic intolerance complaints , such as: Dizziness; Fatigue; Palpitations; Sweating; Changes in vision and/or hearing when standing up. In addition, patients who suffer frequent and unexplained falls may be candidates for this test, as these falls could be the result of a loss of consciousness the patient does not notice or remember. What is the purpose of the tilt test? The tilt test is carried out to assess heart rate and blood pressure response to orthostatism (standing position). It aims to determine the significance of a reduction in heart rate, blood pressure or both in the event of loss of consciousness (fainting). How is the tilt test performed? To perform this examination, the patient lies on their back on a tilting table with their feet supported. They are strapped onto the table with belts at the chest and thighs. Electrodes are placed on the chest, on one finger and in an armband around the arm to enable continuous monitoring of heart rate and blood pressure during the examination. Once the test is started, the tilting table is held horizontally for some time while heart rate and blood pressure are recorded. It is then tilted to an almost vertical position relative to the ground, and remains in this position for a determined period of time while the heart rate and blood pressure response is evaluated. The angle of inclination and the time periods spent in the various positions vary according to the protocol adopted. If no changes are detected , the table returns to the horizontal position, a medicinal product is administered and the examination continues. The table is then returned to the vertical position and the patient's response is re-evaluated. If necessary, this sequence of procedures can be repeated with increasing doses of the product. This article was written with the support of physicians and other clinical professionals from the Hospital da Luz network. The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.
