The test is done by positioning the patient head upright at an angle of 60-80 degrees for 15 to 60 minutes on a tilt table with a supporting footboard.
Olu vavanyo lwenziwa ngokuthi kulaliswe isigulana ize intloko yaso ivuswe ithi nkqo ngeqondo elikuma-60-80 imizuzu eli-15 ukusa kuma-60 kwitafile evuswayo enebhodi exhasa iinyawo.