Hypotension, Orthostatic

**Definition:** A significant drop in BLOOD PRESSURE after assuming a standing position. Orthostatic hypotension is a finding, and defined as a 20-mm Hg decrease in systolic pressure or a 10-mm Hg decrease in diastolic pressure 3 minutes after the person has risen from supine to standing. Symptoms generally include DIZZINESS, blurred vision, and SYNCOPE.

**Tree numbers:** - C10.177.575.600.450 - C14.907.514.482

**Synonyms:** - Hypotension, Postural - Orthostatic Hypotension