Which one of the following roles does EMS have in public health when providing health care screenings and vaccinations, providing health education, and targeting high-risk populations in an effort to ensure that they are receiving needed medical care?

Which of the following statements regarding the use of moderate sedation is TRUE?

a. The patient is sedated to a point where they cannot be aroused. b. Moderate sedation is designed for relief of anxiety. c. Cardiac function is impaired. d. The patient is able to respond to verbal or tactile stimulation.

The aortic valve maintains one-way blood flow from the ________ to the aorta

A. right ventricle C. right atrium B. left atrium D. left ventricle