Published
I never heard back from anyone on this, but I vote for seperate threads for each topic.
What do you all think?
50% No2 is about .5 MAC, (actually .48) and the MAC 1 of Sevo is 2%. So assuming you are going for a MAC of 1 (50% of the population does not respond to surgical stimulus at MAC 1) a delivery of 1% sevo would be appropriate, as MAC is addititive.
Craig
I accidentally fill a halothane vaporizer with isoflurane,
I decide to do my case without knowing about the error, and set my output at 1.1% for a MAC of 1.5 of halothane. What MAC of isoflurane am I actually delivering?
Other than using the wrong agent, would I still be safe, and why or why not?
Nile, not sure about the mixing of gases in the wrong container cuz the only three we use is iso, sevo, des and there is no way to mess up putting the wrong one in another container but I have switched gases in the middle of a case and will have both on the patient at the same time w/o problems except you have to remember that the two toegather are combined and you have to adjust or titrate to the patient response. The mac of iso is 1.15 so if you filled your contanier with only iso and set your dial to 1.1% then you are at mac.
I like the idea that you suggest on Q&A title, to keep each topic seperate. We could cover the different topics and those with strengths in one area can help others and visa versa.
There is so much to learn, review is always good.
Lee
Also I think another good section would be to put things in a type of format labeled Clin Exp: title. As I do cases day in and day out I pick up little tid bits that help me learn and usually as a class we share these things to help others who may not of had a certain type of case or experience so that when they do have that type of case they will know what to expect and or some tip to make their life easier during the case.
I don't know maybe this sounds like too much work cause we all have to keep up with our studies, classes, care plans and whatever else they deem students need to do.
Lee
This is the kind of question my instructor loves. She practices in undeveloped countries a fair bit, and insists that we are proficient in figuring this kind of thing out.
You are all correct in stating that the VP is similar, the MAC delivered though would be about 1 of isoflurane because its 1.2% for a MAC of 1. So now your patient would be recieving "less" anexthetic. We all know that we need to take into account Solubility and otherr factors to truly decide if less anesthetic is being given.
Craig
AL bug
119 Posts
What concentration of Sevoflurane would you deliver to ensure surgical MAC if administering 50%N2O?
BTW, are we starting new threads for each new topic or just identifying the new topic under this thread?