_____ cells create impulses that determine the heart rate

Which advisory indicates the most severe risk of terrorist threat?

a. elevated b. orange c. red d. imminent

The AEMT is appropriately using the SAMPLE mnemonic when he asks which one of the following questions?

A) "Why did you call for the ambulance?" B) "Who is your doctor?" C) "Have you thought about stopping smoking?" D) "When did you eat last?"