ORTHOSTATIC Meaning and
Definition
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Orthostatic is an adjective used to describe a physiological response or condition related to an upright posture. It specifically refers to changes in blood pressure and heart rate that occur upon standing up or assuming an upright position from a sitting or lying position.
The term "orthostatic" is derived from the Greek words "ortho," meaning upright or straight, and "stasis," meaning standing still. When a person transitions from a supine or seated position to standing, gravity causes blood to pool in the lower extremities, resulting in a decrease in blood volume in the upper body. Orthostatic changes occur as the body responds to this redistribution of blood.
Typically, an orthostatic response involves an increase in heart rate and a temporary drop in blood pressure, both of which are part of the body's attempt to maintain adequate blood flow to the brain and prevent fainting. However, in certain circumstances, these responses may be exaggerated, leading to symptoms such as dizziness, lightheadedness, or even fainting.
Medical professionals often assess orthostatic vital signs, which involve measuring both blood pressure and heart rate in different positions, to evaluate a person's cardiovascular health and to diagnose conditions like orthostatic hypotension or postural orthostatic tachycardia syndrome (POTS).
In summary, "orthostatic" pertains to the changes in blood pressure and heart rate that occur upon assuming an upright posture from a seated or lying position, and it forms a crucial aspect of maintaining adequate blood flow to the brain while standing.
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Relating to or caused by the erect posture.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for ORTHOSTATIC
Etymology of ORTHOSTATIC
The word "orthostatic" is derived from two Greek words:
1. "Orthos" (ὀρθός): This means "upright" or "straight". It can also be translated as "correct" or "proper".
2. "Stasis" (στάσις): This means "standing" or "stationary".
When these two words are combined, it forms the term "orthostatic" which relates to something being in an upright position or pertaining to standing. In the medical context, it is commonly used to describe a condition or a response associated with a sudden change in posture, where a person may experience dizziness or low blood pressure upon standing up quickly.
Similar spelling words for ORTHOSTATIC
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