Postural hypotension


Postural hypotension
A drop in blood pressure (hypotension) due to a change in body position (posture) when a person moves to a more vertical position: from sitting to standing or from lying down to sitting or standing. Postural hypotension is more common in older people. The change in position causes a temporary reduction in blood flow and therefore a shortage of oxygen to the brain. This leads to lightheadedness and, sometimes, a "black out" episode, a loss of consciousness. Tilt-table testing can be used to confirm postural hypotension. Tilt-table testing involves placing the patient on a table with a foot-support. The table is tilted upward and blood pressure and pulse is measured while symptoms are recorded in various positions. No treatment is needed for postural hypotension. If someone with postural hypotension faints, they will regain consciousness by simply sitting or lying down. The person is thereafter advised to exercise caution and slow the process of changing positions from lying to sitting to standing. This simple technique can allow the body to adjust to the new position and permit the nerves to circulation of the legs to adjust slower in older person. Postural hypotension is also called orthostatic hypotension.

Medical dictionary. 2011.

Look at other dictionaries:

  • postural hypotension — noun low blood pressure occurring in some people when they stand up • Syn: ↑orthostatic hypotension • Hypernyms: ↑hypotension …   Useful english dictionary

  • postural hypotension. — See orthostatic hypotension. * * * …   Universalium

  • postural hypotension — see hypotension …   The new mediacal dictionary

  • postural hypotension. — See orthostatic hypotension …   Useful english dictionary

  • Hypotension orthostatique — Classification et ressources externes CIM 10 I95.1 CIM 9 458.0 DiseasesDB …   Wikipédia en Français

  • Hypotension, postural — A drop in blood pressure (hypotension) due to a change in body position (posture) when a person moves to a more vertical position: from sitting to standing or from lying down to sitting or standing. Postural hypotension is more common in older… …   Medical dictionary

  • Postural — Pertaining to the posture or position of the body, the attitude or carriage of the body as a whole, or the position of the limbs (the arms and legs). Postural hypotension is thus a drop in blood pressure (hypotension) due to a change in body… …   Medical dictionary

  • Hypotension — In physiology and medicine, hypotension refers to an abnormally low blood pressure. This is best understood as a physiologic state, rather than a disease. It is often associated with shock, though not necessarily indicative of it. Hypotension is… …   Wikipedia

  • Hypotension, orthostatic — A temporary lowering of blood pressure (hypotension) due usually to suddenly standing up (orthostatic). Orthostatic hypotension may be experienced by healthy people it is more common in older people who rise quickly from a chair, especially after …   Medical dictionary

  • Postural orthostatic tachycardia syndrome — (often referred to as just postural tachycardia syndrome or POTS) is a condition of dysautonomia, and more specifically, orthostatic intolerance, in which a change from the supine position to an upright position causes an abnormally large… …   Wikipedia


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