In the healthy heart, the electrical impulses that cause contraction of the cardiac muscle are initiated in the:
A) sinoatrial node.
B) left atrium.
C) bundle branches.
D) ventricles.
Question 2
Which of the following is NOT one of the three basic elements of citizen involvement in EMS?
A) Recognizing an emergency
B) Providing financial support for EMS agencies
C) Initiating basic life support procedures
D) Accessing the EMS system