what causes orthostatic vital signs to drop
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.