The reason why such people feel dizzy despite having normal blood pressure is not yet clear. What is echocardiography? Overview Orthostatic hypotension — also called postural hypotension — is a form of low blood pressure that happens when you stand up from sitting or lying down.
Do lie down until dizziness passes, then get up slowly move slowly and carefully get plenty of rest drink plenty of fluids, especially water avoid coffee, cigarettes, alcohol and drugs. Treatment for orthostatic hypotension depends on the cause.
Ruff says. Dehydration takes place when your body loses more fluid than you drink.
If blood pressure does not decrease, the person is given isoproterenol a drug that stimulates the heart intravenously in a dose large enough to accelerate the heart rate by 20 beats per minute, and the test is repeated.
However, long-lasting orthostatic hypotension can signal more-serious problems, so it's important to see a doctor if you frequently feel lightheaded when standing up. Antipsychotics particularly phenothiazines , monoamine oxidase inhibitors, or tricyclic or tetracyclic antidepressants. The baroreceptors send signals to centers in your brain, which signals your heart to beat faster and pump more blood, which stabilizes blood pressure.
Calcium channel blockers, clonidine , diuretics such as furosemide , methyldopa , nitrates, prazosin , or rarely beta-blockers.
Make sure you talk with your doctor if you regularly experience dizziness and to share exactly what the sensation feels like.Why Do I Feel Lightheaded When I Stand Up?
See a GP if: In people who have been at bed rest for a long time. Change your eating habits.
Click here for the Professional Version. Numbness, tingling, and weakness. In some people, particularly older people, blood pressure drops excessively when they sit or stand up a condition called orthostatic or postural hypotension.
But there are things you can do to take care of yourself while you're feeling dizzy. Aging often causes some degree of autonomic nervous system dysfunction, but doctors examine all affected people to ensure that no nervous system disorders are present. You will enter the website momentarily.
Spinal cord disorders. Doctors then do a physical examination.