Preintubation Adult Fiberoptic Bronchoscope Assessment—An Effective Way to Know Depth of Insertion of Double-Lumen Tube

Abstract

This slowed down the cooling of the stagnant fluid to room temperature from 5 minutes to 15 minutes, and reduced the minimum flow required to maintain normothermic infusate from 80 mL/min to 20 mL/min. Once the fluid in the tubing reaches ambient temperature, this cold volume of fluid will be infused into the patient with the next fluid challenge. To prevent this, we created a setup that would allow flushing of the stagnant/cold fluid from the efferent tubing (returning it to the reservoir without waste) immediately before a fluid bolus while priming the tubing with warmed fluid for subsequent infusion into the patient (Fig 2).