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 not to be confused with hypertension.

Normal physiology

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Blood pressure is continuously regulated by the autonomic nervous system, using an elaborate network of receptors, nerves, and hormones to balance the effects of the sympathetic nervous system, which tends to raise blood pressure, and the parasympathetic nervous system, which lowers it. The vast and rapid compensation abilities of the autonomic nervous system allow normal individuals to maintain an acceptable blood pressure over a wide range of activities and in many disease states.

Mechanisms and Causes

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Reduced blood volume, called hypovolemia, is the most common mechanism producing hypotension. This can result from hemorrhage, or blood loss; insufficient fluid intake, as in starvation; or excessive fluid losses from diarrhea or vomiting. Hypovolemia is often induced by excessive use of diuretics. (Other medications can produce hypotension by different mechanisms.)

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@redheadbraceman Mostly my back,ribs,shoulders,ankles,wrists,elbows etc..Muscle pain,orthostatic hypotension,intracranial hypertension
Bribrilonely (Brigitte PAYET) Sat, 04 Feb 2012 09:10:13 -0000
@redheadbraceman Mostly my back,ribs,shoulders,ankles,wrists,elbows etc..Muscle pain,orthostatic hypotension,intracranial hypertension

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