What is an unacceptable light level for direct laryngoscopy?

Retrograde light-guided laryngoscopy for tracheal intubation: clinical practice and comparison with conventional direct laryngoscopy.

BACKGROUND Tracheal intubation with conventional laryngoscopy requires many trials until beginners are sufficiently skilled in intubating patients safely. To facilitate intubation, the authors used retrograde light-guided laryngoscopy (RLGL) and compared its feasibility with conventional direct laryngoscopy (DL). METHODS Twenty operators participated in a prospective, randomized, open-label, ...

Will direct laryngoscopy become an extinct skill?

Unnecessary uncertainty is unacceptable.

Learning Curves for Direct Laryngoscopy and GlideScope® Video Laryngoscopy in an Emergency Medicine Residency

INTRODUCTION Our objective is to evaluate the resident learning curves for direct laryngoscopy (DL) and GlideScope® video laryngoscopy (GVL) over the course of an emergency medicine (EM) residency training program. METHODS This was an analysis of intubations performed in the emergency department (ED) by EM residents over a seven-year period from July 1, 2007 to June 30, 2014 at an academic ED...

Heparinized plasma is an unacceptable specimen for ammonia determination.

The glutamate dehydrogenase (GLDH, EC 1.4.1.3) reaction is almost universally used for the determination of ammonia. Some kit manufacturers specify either heparinized or EDTA plasma, whereas others recommend EDTA only, but without saying why. The procedure in Volume 9 of Selected Methods in Clinical Chemisty (1) requires EDTA but does not discuss the consequences of substituting heparin. We hav...