Medicine/Medical. a fall in blood pressure associated with an upright position, usually occurring as a result of standing still for a long time or rising from a prolonged stay in bed and often causing faintness, dizziness, and vision disturbances.
low blood pressure occurring upon standing up or when standing, often accompanied by faintness, dizziness, and vision disturbances; also called postural hypotension
When a person experiences any of the symptoms above, a physician can confirm orthostatic hypotension if the person’s blood pressure falls significantly on standing up and returns to normal when lying down.
See orthostatic hypotension
orthostatic hypotension n.
A form of low blood pressure precipitated by moving from a lying or sitting position to standing up straight. Also called postural hypotension.
postural hypotension n.
See orthostatic hypotension.
- Postural position
postural position n. See physiologic rest position.
- Postural proteinuria
postural proteinuria n. Proteinuria associated with body position, such as orthostatic proteinuria.
- Postural syncope
postural syncope n. A syncope that occurs upon assuming an upright position and is caused by inadequate blood flow to the brain resulting from failure of normal vasoconstrictive mechanisms.
- Postural vertigo
postural vertigo n. Vertigo that occurs with a change of position, usually when moving from a lying or sitting to a standing position.