Some older patients feel unsteady when they get out of bed or stand up from a seated position. This condition is often caused by a lowering of blood pressure that occurs with postural change. It is called:

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Orthostatic hypotension is a drop in blood pressure that occurs when a person stands up from a seated or recumbent position. It is a common problem in patients with autonomic dysfunction, such as occurs in diabetes mellitus, Shy-Drager syndrome, and several other diseases and conditions. It is not uncommon in older individuals. Orthodromic conduction is the passage of an electrical signal through the pathways of the heart in a normal or healthy direction. Diabetes insipidus is the excretion of large volumes of urine because of insufficient secretion or action of antidiuretic hormone.

Some Older Patients Feel Unsteady When They Get Out of Bed