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Nebulizer placement for vent pts?

By James McKinney posted 02-24-2011 13:05

  
I'm curious where most RT's feel the correct placement of a neb is in a vent circuit? I have three scenarios that I see in Florida. All using a valved tee.

1.) Place the neb between the in-line suction device and the HME and don't remove the HME (if using humidifier then between the in-line suction device and the circuit wye.

2.) Place the neb at the wye on the inspiratory side between the insp circuit limb connector and the wye. (By-Pass or remove HME if used).

3.) Place the neb at the beginning of the inspiratory limb (Between vent outlet and insp limb and by-pass the HME) (or with humidifier--between humidifier chamber and insp limb.

There are some other scenarios out there but these are the three most seen. I know what the literature says and what VAP guidelines say. But VAP does not appear to be present in Florida :-)

Anyone having literature to support scenario #1 please let me know how to get a copy?
Thanks!


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02-25-2011 15:27

I believe you are referring to a jet neb, aren't you? cause the kind of neb to be used can make a difference in its placemente in the circuit. Check the Respiratory Care Journal July 2010 Vol 55 No 7, there are two studies done by Ari et al and a Editorial made by R. DiBiasi about the kind of nebs, where to position them, inluence of humidity and heat and the inflence of bias flow...