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Kaplan Qbank USMLE



Author4 Posts
  #1

A 50-year-old man develops difficulty walking while
receiving drug therapy for paranoid behavior. Physical
examination shows masked facies and diffuse muscle
rigidity. He is slow in initiating movement and walks
with a shuffling narrow-based gait. Which of the
following drugs is the most likely cause of these
findings?
(A) Barbiturate
(B) Benzodiazepine
(C) Monoamine oxidase inhibitor
(D) Phenothiazine
(E) Tricyclic compound

  #2

:?: E

  #3

Parkinsons is a common side effect of long term phenothiazine use (chlorpromazine).

I say D.

  #4

(D) Phenothiazine

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