The first heart sound (S1 ) is associated with closure of which heart valves?
A) Mitral and aortic B) Tricuspid and mitral
C) Tricuspid and pulmonic D) Aortic and pulmonic
B
Health Professions
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Which of the following agencies promulgates regulations to control toxic substance?
a. OSHA b. EPA c. DOT d. All of these
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Which of the following statements regarding one-rescuer CPR is correct?
A) You should assess the patient for a pulse after 3 cycles of CPR. B) A compression to ventilation ratio of 15:2 should be delivered. C) Ventilations should be delivered over a period of 2 to 3 seconds. D) The chest should be allowed to fully recoil after each compression.
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