POTS is diagnosed only when orthostatic hypotension is ruled out and when there is no acute dehydration or blood loss.
Postural Orthostatic Tachycardia Syndrome (POTS) - Causes
Navigating the Ups and Downs of POTS: Understanding Postural
Postural Orthostatic Tachycardia Syndrome - POTS Syndrome
POTS - Research Updates
POTS (Postural Orthostatic Tachycardia Syndrome)
Assessment and Management of Neurogenic Orthostatic Hypotension
Postural Orthostatic Tachycardia Syndrome (POTS) Part I
Figure 2 from Postural Tachycardia Syndrome (POTS)
Postural Orthostatic Tachycardia Syndrome (POTS) – Hyperadrenergic