The heading whipping back during a rear-end collision, beyond its normal range, is a _____ and can tear the anterior longitudinal ligament.

The main duties of the dispatcher, after sending the responders and providing prearrival instructions, include:

A) transferring communications. B) discussing medical direction. C) directing the crew to an appropriate receiving facility. D) supporting and coordinating.

In which atmosphere might the use of an air-purifying respirator be permissible?

a. IDLH conditions b. Oxygen-deficient atmosphere c. Atmosphere contaminated with a known substance d. Suspended dust of unknown composition