A young woman attends a "Botox Party" and is injected with botulinum toxin type A to decrease "frown lines" between her eyebrows
Later that evening the patient is admitted to the emergency department and is hysterical, because she cannot move her eyebrows. The nurse explains that that toxin causes what? A) "The toxin causes muscle death, which smoothes wrinkles in the area."
B) "The toxin causes muscle paralysis, preventing movement and relieving wrinkles."
C) "The drug is a toxin to nerves in the area."
D) "The drug is a permanent muscle relaxant and the muscles will never move again."
B
Feedback:
Botulinum toxin types A and B bind directly to the receptor sites of motor nerve terminals and inhibit the release of acetylcholine, leading to local muscle paralysis. These two drugs are injected locally and used to paralyze or prevent the contractions of specific muscle groups. The action smoothes wrinkles in the area, but does not cause muscle death. The effect is temporary and does not cause nerve death. The other options are false statements.
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