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.
1 Dehydration can sometimes cause blood pressure to drop. 2  However, dehydration does not automatically signal low blood pressure. 3  Fever, vomiting, severe diarrhea, overuse of diuretics and strenuous exercise can all lead to dehydration, a potentially serious condition in which your body loses more water than you take in. Postural (orthostatic) hypotension This occurs for some people when standing from a sitting or prone position. 2  Their blood pressure drops rapidly, causing dizziness, lightheadedness, blurred vision and/or even fainting. 3  Causes can include dehydration, prolonged bed rest, diabetes, heart problems and excessive heat.