What size needle should be used for IV injections?

A) 1- or 1.5-inch needle, 19–22 gauge
B) .5–1-inch needle, 24–27 gauge
C) 2–2.5-inch needle, 18–22 gauge
D) 1- or 1.5-inch needle, 16–20 gauge

D

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A ________ refers to a large number of similar cells, where a drug is expected to work

a. receptor b. potency c. target cell d. dose–response curve

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________ is a small incision made in the internal urethra to release scar tissue or other stricture

A. Urethrotomy B. Dilation

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