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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Sudden Unconsciousness With Low BP?

we had a 50+ man tonight become unresponsive for aprox 2min. staring into space with eyes semi rolled up. My husband could not find a pulse. I could but was weak and thready. called 911. by the time they arrived he was responsive. he was hightly intoxicated. pupils equal. first responders took a bp over sweatshirt that was 90/80. could not count his hr. when ems arrived took second bp 110/ 80 again over sweatshirt. he refused to go to er but we insisted. I feel they didn't want to take him because of lack of insurance. Were we wrong in thinking he should get checked?
Thu, 1 Feb 2018
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Cardiologist,  's  Response
Hello,
There are two possibilities, one is syncope and other is seizures. Did he have any abnormal jerky or tightening of limbs, if yes it points towards seizures.
I think in his case, syncope was a likely possibility, probably vasovagal syncope. Probably due to fall in bp leading to decreased blood supply to brain. What was he doing just before this episode?
He ll need evaluation, ecg, holter and echo. Monitor his bp and pulse rate. Ask to him avoid risky places and activities like driving, swimming etc. Avoid dehydration, don't strain at micturition and stools.
Hope this helps you and get back if you have any doubts.
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What Causes Sudden Unconsciousness With Low BP?

Hello, There are two possibilities, one is syncope and other is seizures. Did he have any abnormal jerky or tightening of limbs, if yes it points towards seizures. I think in his case, syncope was a likely possibility, probably vasovagal syncope. Probably due to fall in bp leading to decreased blood supply to brain. What was he doing just before this episode? He ll need evaluation, ecg, holter and echo. Monitor his bp and pulse rate. Ask to him avoid risky places and activities like driving, swimming etc. Avoid dehydration, don t strain at micturition and stools. Hope this helps you and get back if you have any doubts.