Suggest some confounding variables of this study protocol please!?

01 February 2016 1 2K Report

A study protocol is designed to detect the faults & physiological effects due to unidentified misplacement of DLT (inserted conventionally for one-lung ventilation) by using FOB. What may be the confounding variables in this study & how to deal with those?

Christopher A Smith

Rabaul,

I'm afraid you do not present enough information for a complete assessment of potential confounding variables. It seems to me that at some point the "unidentified" misplace net has to be identified to be entered into your study. Therefore, the entire premise escapes my understanding.

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