With regard to nerve block analgesia and anesthesia, nurses should be aware that:
a. Most local agents are related chemically to cocaine and end in the suffix -caine.
b. Local perineal infiltration anesthesia is effective when epinephrine is added, but it can be injected only once.
c. A pudendal nerve block is designed to relieve the pain from uterine contractions.
d. A pudendal nerve block, if done correctly, does not significantly lessen the bearing-down reflex.
ANS: A
Common agents include lidocaine and chloroprocaine. Injections can be repeated to prolong the anesthesia. A pudendal nerve block relieves pain in the vagina, vulva, and perineum but not the pain from uterine contractions, and it lessens or shuts down the bearing-down reflex.
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