Definitions for orthostatic hypotension

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  1. orthostatic hypotension, postural hypotension(noun)

    low blood pressure occurring in some people when they stand up

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  1. Orthostatic hypotension

    Orthostatic hypotension, also known as postural hypotension, orthostasis, and colloquially as head rush or dizzy spell, is a form of hypotension in which a person's blood pressure suddenly falls when standing up or stretching. Medically it is defined as a fall in systolic blood pressure of at least 20mm Hg and diastolic blood pressure of at least 10 mm Hg when a person assumes a standing position. The symptom is caused by blood pooling in the lower extremities upon a change in body position. It is quite common and can occur briefly in anyone, although it is particularly prevalent among the elderly, and those with low blood pressure.


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