Definition of "orthostatic" []

• Relating to or caused by standing upright: orthostatic hypotension. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This kind of position-related drop in blood pressure - a condition known as orthostatic hypotension - is pretty common and is usually linked to dehydration or overmedication."
• "In a retrospective study by Rabkin and associates, the most frequently occurring adverse effects included hypertensive reactions (some of these were due to inadvertent consumption of foods containing tyramine or concurrent use of catecholamine-containing drugs), orthostatic hypotension, hypomania, weight gain and sexual dysfunction. 2 In most cases adverse effects were controlled with dosage adjustments."
• "She immediately knew whom I had to take Sarah to see: Dr. Julian Stewart, who was doing extensive research on POTS postural orthostatic tachycardia syndrome in adolescents, and Dr. Hendricks-Munoz believed Sarah's symptoms closely matched those associated with POTS."