Neither the paralleling nor the bisecting technique completely meets all five requirements for accurate shadow casting in all regions of the oral cavity on all patient types

The mitral or bicuspid valve,

A. prevents blood from back flowing into the left atrium B. prevents blood from back flowing into the right atrium C. prevents the blood from back flowing into the lungs D. is located between the left atrium and the right ventricle

When planning to disentangle a patient, whose responsibility is it to focus the team on a safe operation when other rescuers lose sight of the "big picture"?

A) The entire team B) Fire and rescue supervisor C) The Advanced EMT D) The physician