FLORENCE TERRY GRISWOLD. What followings is an excerpt from The Pan American Round Table, Lois Terry Marchbanks, Avon Behren Press, 1983, (pp. 5-11). The history of the Pan American Round Table movement is the saga of the heart and mind of one woman, Florence Terry Griswold. She was born May 29, 1875, near Eagle Pass, Texas.
Following is a list of causes or underlying conditions (see also Misdiagnosis of underlying causes of Orthostatic hypotension) that could possibly cause Orthostatic hypotension includes: 1  Dysautonomia. 2  Dehydration. 3  Prolonged bed rest.  Addison's 1  disease. Atherosclerosis. 2  Diabetes. Shy-Drager syndrome.  See also underlying causes of hypotension.
During periods of immobility, calcium leaves bones and enters the blood, where it has an influence on blood coagulation. Orthostatic hypotension probably due to a decrease in the neurovascular reflexes, which normally causes vasoconstriction, and to a loss of muscle tone. The result is that blood pools and does not squeeze from veins in the lower part of the body to the central circulatory system. The immobile person is more susceptible to developing orthostatic hypotension. The person tends to feel weak and faint when the condition occurs. Respiratory System.