When the volume of a closed container such as a hypodermic needle is increased,
A) pressure increases.
B) pressure decreases.
C) Boyle's law is violated.
D) air or liquid will be sucked into the hypodermic needle.
B
Health Professions
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When using an auto-injector to give epinephrine, the primary injection site is the:
A. medial part of the buttocks. B. lateral portion of the arm. C. lateral portion of the thigh. D. medial portion of the thigh.
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Beta-blockers have what effect on heart rate and contractility?
A) Decreased heart rate and increased contractility B) Increased heart rate and decreased contractility C) Decreased heart rate and contractility D) Increased heart rate and contractility
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