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KingstonTodd · 02-03-2010, 11:18 AM

I agree that there are a lot of measures you can do to make it safer (heat, fluids, heart rate and blood pressure monitoring), and all those things cost money. Good point about "low cost" clinics vs a more comprehensive operation.

I do wonder about different routes of administering anesthetic, injectable, IV and Gas, for the case of overdose. With a gas, if you notice the breathing getting too deep, which is the first sign, you cut back the flow of anesthetic and increase the oxygen. If you cut it of completely the animal would wake up in a minute, very fast, and so the risk of overdose is only there is somebody in not monitoring the animal closely. With injectable, you can't suck it back out, and once they are down they take 10 minutes of more to come out, which may be too long. This method is very old fashioned and I think where the "risky" aspect of anesthetic comes from historically. Now, with IV, since it is not a single large dose at the begining like injectable, but rather a smaller continuous dose, I think it would be much safer than injectable. I would like to ask a vet how fast it wears off, i.e. how fast can you revive if you notice slowed breathing and cut the flow in the IV? So, I do prefer a gas at the moment. (side note, we use gas over injectable in lab when we do surgery on mice, they recover much better and we have found it to be safer, and have lesss complications like overdose).

02-03-2010, 11:18 AM	#13 (permalink)
KingstonTodd Super Moderator Join Date: Aug 2006 Posts: 2,005	Re: Early Spay/Neuter *** I agree that there are a lot of measures you can do to make it safer (heat, fluids, heart rate and blood pressure monitoring), and all those things cost money. Good point about "low cost" clinics vs a more comprehensive operation. I do wonder about different routes of administering anesthetic, injectable, IV and Gas, for the case of overdose. With a gas, if you notice the breathing getting too deep, which is the first sign, you cut back the flow of anesthetic and increase the oxygen. If you cut it of completely the animal would wake up in a minute, very fast, and so the risk of overdose is only there is somebody in not monitoring the animal closely. With injectable, you can't suck it back out, and once they are down they take 10 minutes of more to come out, which may be too long. This method is very old fashioned and I think where the "risky" aspect of anesthetic comes from historically. Now, with IV, since it is not a single large dose at the begining like injectable, but rather a smaller continuous dose, I think it would be much safer than injectable. I would like to ask a vet how fast it wears off, i.e. how fast can you revive if you notice slowed breathing and cut the flow in the IV? So, I do prefer a gas at the moment. (side note, we use gas over injectable in lab when we do surgery on mice, they recover much better and we have found it to be safer, and have lesss complications like overdose).