How is postural orthostatic tachycardia syndrome (POTS) diagnosed?
POTS can be difficult to diagnose due to so many symptoms occurring in the body over time. Before diagnosis of POTS, various symptoms may lead patients to try many doctors. Patients with POTS may have symptoms for months to years before finally being diagnosed with the condition.
A tilt table test is the gold standard of POTS diagnosis. The tilt table measures your heart rate and blood pressure as you change posture and position.
Besides the tilt table, other testing may be done for POTS:
- Blood and urine test for causes of POTS and conditions that mimic POTS.
- QSART (a test that measures the autonomic nerves that control sweating).
- Autonomic breathing test (to measure how your blood rate and pressure respond during exercise).
- TST (tuberculin skin test).
- Skin nerve biopsy.
- Blood volume with hemodynamic studies.