BP must be recorded in lying, sitting and standing positions especially when postural hypotension is suspected. When there is a fall in systolic pressure of > 20 mm Hg after standing for 3 minutes, from the lying posture, the patient is said to have postural hypotension.
Causes of orthostatic hypotension
1.Hypovolaemia (blood or fluid loss)
2.Autonomic insufficiency
5. Secondary hypertension (pheochromocytoma).
Causes of orthostatic hypotension
1.Hypovolaemia (blood or fluid loss)
2.Autonomic insufficiency
- Diabetes
- Alcoholism
- Shy drager syndrome
- Diuretics
- Alfa blockers
- ACE inhibitors
- Ganglion blocking agents
- Centrally acting anti-hypertensives
5. Secondary hypertension (pheochromocytoma).
