Definition

1. Adjective:
   • Relating to or caused by an upright standing posture: The word "orthostatic" describes something that pertains to, is characteristic of, or results from the act of standing upright.

Usage Examples

• Adjective:
  • The patient was tested for orthostatic intolerance. (The patient was tested for symptoms that occur upon standing upright.)
  • Orthostatic measurements are taken while lying down and then after standing. (Measurements related to upright posture are taken in different positions.)
  • A common sign is orthostatic dizziness. (A common sign is dizziness caused by standing up.)

Advanced Usage

• Medical Context: Primarily used in clinical and medical terminology to describe physiological changes, symptoms, or conditions triggered by assuming an upright posture.
  • The study focused on orthostatic vital signs. (The study focused on vital signs measured in relation to postural change.)
• "Orthostatic challenge": A test or situation designed to assess the body's response to standing.
  • The tilt-table test provides a controlled orthostatic challenge. (The tilt-table test provides a controlled way to test the body's response to an upright position.)

Variants and Related Words

• Orthostasis (n): The act of standing upright; also used to refer to the condition of maintaining an upright posture.
  • Orthostasis can be difficult for patients with autonomic dysfunction. (Maintaining an upright posture can be difficult for those patients.)
• Orthostatism (n): A less common synonym for orthostasis.

Synonyms

• Postural: Relating to posture.
  • Postural hypotension is a synonym for orthostatic hypotension. (A drop in blood pressure upon standing.)

Related Phrases

• Orthostatic hypotension: A specific medical condition defined by a sudden fall in blood pressure when a person stands up.
  • His diagnosis was orthostatic hypotension. (His diagnosis was a drop in blood pressure upon standing.)
• Orthostatic tachycardia: An excessive increase in heart rate upon standing.
  • She experiences orthostatic tachycardia upon getting out of bed. (She experiences a very fast heart rate upon standing up.)
• Orthostatic intolerance: A condition where symptoms like lightheadedness or fainting are provoked by upright posture.
  • Patients with orthostatic intolerance often need to sit or lie down. (Patients who cannot tolerate standing upright often need to sit or lie down.)

Adjective

1. pertaining to an upright standing posture
   • orthostatic hypotension