Which of the following layers of the heart wall lines the heart chambers and valves?

A) endocardium
B) pericardium
C) epicardium
D) myocardium


A

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Pharmacies are required to have a(n) ________ for all hazardous chemicals on the premises

a. OSHA manual b. Material Safety Data Sheet c. Hazard communication plan d. Exposure control plan

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One of the MOST deadly toxic agents known is a:

a. vesicant. c. nerve agent. b. biotoxin. d. pulmonary agent.

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Which of the following can interfere with a urine concentration test?

A) Hypercalcemia B) Acute renal failure C) Bone disease D) All of the above

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The most abundant electrolyte in the blood is the:

A. calcium ion. B. chloride ion. C. sodium ion. D. potassium ion.

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