I was given something that may have included this when I was getting my wisdom teeth removed (Note: not extracted, as they were cutting them out before they came in). I was a teen at the time.
I counted down from 10, nothing, looked at the anesthesiologist and said “hunh, do you need to give me more of…….” and I was out.
Interestingly the “counting back from 10” comes from the days of using thiopental.
Thiopental works a bit quicker than propofol and will cause unconsciousness after only counting a few numbers.
Propofol doesn’t work as reliably quickly, and generally in elective surgery a lower dose is used so it takes a little longer.
This is why many anaesthetists don’t ask you to count back from 10 anymore. “Think of somewhere nice you’d rather be” is a bit more pleasant.
It doesn’t put you to sleep right away so much as it hits the “pause” button on your brains ability to record/process sensory information. The result is similar to a blackout episode and eventually the body goes into a more or less suspended animation until it can start processing information again.
However, just like an intense blackout episode, you don’t remember anything that happened between the record button getting paused and when you finally go into that suspended state. So as far as your brain is concerned you were asleep the whole time.
Best nap I’ve ever had in my life. I do remember waking up halfway through (wisdom teeth removal) because mine were very impacted and he was shaking my head back and forth in the most unhinged way trying to dig one of the teeth out. I also clearly remember him raving about how I was the best dental patient he’s ever had, but I’m convinced that wasn’t real 😂
It’s given intravenously (IV). Drugs administered this way enter the bloodstream immediately and can take effect in less than 30 seconds.
By contrast, orally administered drugs typically take about 30-40 minutes. Orally administered drugs are also metabolized by liver “first pass metabolism” which can change or decrease their effects.
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