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How long does it take to pass out from lack of oxygen

A 37-year-old member asked:
Dr. Bruce J. Stringer
46 years experience Radiology
4 minutes or more: In the event of a full blown cardiac arrest there can be brain damage in as little as 4 to 5 minutes without circulation at normal body temperature. I ... Read More
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A 24-year-old male asked:
Dr. Bikash Bose
44 years experience Neurosurgery
Hypoxia: Yes it is low enough to cause brain damage.
A 39-year-old female asked:
Dr. M. Hytham Beck
42 years experience General Surgery
Vagal response : It sound like you are getting s Vaal reaction initiated by the sudden increase in the abdominal pressure from laughing or coughing . Try to stay well ... Read More
1
1 thank
A 27-year-old female asked:
Dr. Robert Kwok
32 years experience Pediatrics
Doctor to evaluate: In such situations, the general recommendation is, "Stop doing that!" One can make an appointment with her primary care doctor to go over the issues a ... Read More
A 43-year-old member asked:
Dr. Brian Strizik
27 years experience Cardiology
Damge to arteries: Damage to arteries leading to peripheral arterial disease.
1
1 thank
A 39-year-old member asked:
Dr. Carlo Hatem
24 years experience Pulmonary Critical Care
Bad: Lack of oxygen in emphysema is general and not localized to one part of the body. Most critical and sensitive parts are brain and heart. If there is a ... Read More
A 46-year-old member asked:
Dr. Mark Safford
34 years experience Critical Care
Oxygen delivery: Lack of oxygen to any part of the body from any cause may cause ischemia. This causes the cells to do their work via alternate pathways. This causes ... Read More
A 39-year-old member asked:
Dr. Michael Sparacino
36 years experience Family Medicine
Possibly: It depends on the severity and length of deprivation.
A 26-year-old male asked:
Dr. Michael Michaels
52 years experience Urology
Sorry: Don't understand what you mean by "member". Ratio of what? Please rephrase your question if you want an answer.
A 25-year-old male asked:
Dr. Farrah Ahmad
17 years experience Internal Medicine
No : Accididents is one of the exceptions.

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