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2. Orthostatic hypotension - Wikipedia

   en.wikipedia.org/wiki/Orthostatic_hypotension

   Orthostatic hypotension can be confirmed by measuring a person's blood pressure after lying flat for 5 minutes, then 1 minute after standing, and 3 minutes after standing. [29] Orthostatic hypotension is defined as a fall in systolic blood pressure of at least 20 mmHg or the diastolic blood pressure of at least 10 mmHg between the supine ...

3. Greyout - Wikipedia

   en.wikipedia.org/wiki/Greyout

   Standing up suddenly (see orthostatic hypotension), especially if sick, hungover, or experiencing low blood pressure. Fatigue; Hyperventilation, paradoxically: self-induced hypocapnia, such as in the fainting game or in shallow water blackout. Overexertion; Panic attack; Recovery is usually rapid.

4. Reflex syncope - Wikipedia

   en.wikipedia.org/wiki/Reflex_syncope

   Reflex syncope can occur in otherwise healthy individuals, and has many possible causes, often trivial ones such as prolonged standing with the legs locked. [citation needed] The main danger of vasovagal syncope (or dizzy spells from vertigo) is the risk of injury by falling while unconscious.

5. Feeling dizzy when you stand up? Try these two leg movements

   www.aol.com/news/initial-orthostatic-hypotension...

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6. Dizzy when you stand up? A few simple moves can help ... - AOL

   www.aol.com/dizzy-stand-few-simple-moves...

   If you feel dizzy and lightheaded when you stand up, a simple and easy-to-perform leg maneuver may eliminate those annoying symptoms, a new study suggests.

7. If you get dizzy when you stand up, use this fighter ... - AOL

   www.aol.com/article/2016/06/03/if-you-get-dizzy...

   If you stand up too quickly and start to feel light headed, it's caused by a drop in blood pressure in your head and upper body. It's the same reason fighter pilots black out in high G turns, and ...

8. Syncope (medicine) - Wikipedia

   en.wikipedia.org/wiki/Syncope_(medicine)

   On standing the person will experience reflex tachycardia (at least 20% increased over supine) and a drop in blood pressure. [ 9 ] Hypoadrenergic orthostatic hypotension occurs when the person is unable to sustain a normal sympathetic response to blood pressure changes during movement despite adequate intravascular volume.

9. Orthostatic vital signs - Wikipedia

   en.wikipedia.org/wiki/Orthostatic_vital_signs

   [2] [3] [4] Used to identify orthostatic hypotension, [5] orthostatic vital signs are commonly taken in triage medicine when a patient presents with vomiting, diarrhea or abdominal pain; with fever; with bleeding; or with syncope, dizziness or weakness. [2]