almost lose conciousness

[cryptic]

It may be something called postural hypotension.. whereby, due to getting up suddenly to an upright position, there is lower blood supply to the brain. Its of no significance if it happens rarely , like lets say once a month, but if u are suffering from this problem on a day to-day basis you should seek the advice of a physician..

 

[solar_plasma]

The CO scenario is scary, - thought-provoking. I'm glad you're fine!

 

[niteliteone]

something weird just happened
all this happened in less than 1 minute.
my propane furnace is inside the tool shed
so i was trying to light it up but was unable for some reason so some gaz was unburned ,than it lighted with a big usual woof ,i tough excellent let go on, than suddently i was on the verge of loosing conciousness . i mean 10 sec before everything was fine than 10 sec later im rushing to close the furnace before almost passing out... can the unburned propane did this? it wasent smelling much of propane ... now it been about 20 minute and i still feel dizzy.

if it is not the propane , i have been heating hydrated borax in the stove to remove the water from the crystal but i dont think that borax actually evaporate...
in the furnace sonner today i have fired a new crucible but it was this morning and i was feeling alright...

could the propane realy be the responsible and that fast?

Sounds like a preponderance of several events might have caused a strange event not !!!
But, I would first consider the most logical as the cause. You bent over to light the burner, thus changing your autonomic breathing pattern. Which in turn caused a lowering of available oxygen in your brain. A change of 2% Brain /blood oxygen level can cause the symptoms you are talking of.

 

[Anonymous]

A change of 2% Brain /blood oxygen level can cause the symptoms you are talking of.

I experience very similar symptoms after drinking 8 pints of Guinness.

 

[Geo]

NOx inhalation may cause the same symptoms. it can cause symptoms that seem to have a delayed effect as well. you may accidentally inhale fumes today and not show any effects for a couple of days later though most symptoms occur upon exposure. nitrogen oxide in the blood stream relaxes the blood vessels and thereby lowering blood pressure, if you bend over and then straighten up quickly, you may pass out. nitrates are given to heart attack patients specifically for this effect. did you happen to check your blood pressure after the episode?

 

[ericrm]

no blood check ,but i havent work with the lab for the last 2 month.

i think im such a bad exemple that i must specify in case of someone think its ok to work inside without air that i have a fume hood for the chemical , and i have been heating the tool ched with the door closed for the last 2 winter (i have plenty of air passing to the crack in the wall to allow continuous air exchange...) i have put an check valve on the furnace to avoid burning gaz comming back in the thank and the furnace is in one side and the bottle the other side on the place. i do not melt lead or zinc anymore to avoid exposure to the metal...