ManuNastai
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30. A 22-year-old college student who has been treated for anxiety and depressed mood for 6 weeks develops episodes in which she feels light-headed and almost faints. Pulse is 110/min, and blood pressure is 110/70 mm Hg while lying down and 85/60 mm Hg while standing. Which of the following drugs is most likely to have caused the orthostatic hypotension?
A) Alprazolam
B) Amitriptyline
C) Buspirone
D) Diazepam
E) Fluoxetine
34. A 55-year-old man is exposed to Malathion while working on a farm. After successful treatment of cholinergic symptoms with atropine, he continues to have difficulty breathing and muscle weakness. Which of the following is the most appropriate treatment?
A) Gallamine
B) Hexamethonium
C) Mecamylamine
D) Pilocarpine
E) Pralidoxime
37. A 60-year-old woman with osteoarthritis has recurrence of pain and stiffness in her joints. She is afebrile. The most appropriate therapy is
A) Allopurinol
B) Aspirin
C) Colchicine
D) Estrogen
E) Probenecid
47. A pharmaceutical company has developed a drug that prevents egress of Mg2+ from the N-methyl-D-aspartate (NMDA) receptor. What is the most likely effect of this drug in a patient with an acute stroke?
A) Decreased risk for seizures due to hypomagnesemia
B) Facilitation of Ca2+ entry into the neuron and enhancement of excitotoxin-mediated cell death
C) Hyperpolarization of membrane and conduction block
D) Prevention of Ca2+ entry into the neuron and reduction of excitotoxin-mediated cell death
E) Rapid depolarization of membrane with lowering of the seizure threshold
2. Which of the following drugs is a skeletal muscle relaxant that works by a direct action on excitation-contraction coupling rather than an effect on the central nervous system?
A ) Baclofen
B ) Benztropine
C ) Bromocriptine
D ) Dantrolene
E ) Diazepam
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"Love is the only inflamation of the heart that drains in the vagina" (translation after Dr Petre Florescu, Professor of Pathology, UMF "Iuliu Hatieganu", Cluj Napoca
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| NE
Forum Guru
Topics: 53
Posts: 504
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30- B- hTA is side effect for all TCA
34 - E- to regenerate cholinesterase
37- B- they tell nothing if took something before
47- B -
2- D - dantrolene acts on sarcoplasmic reticulum and decreases i.c. Ca
Attached Files:
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| fox
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47 is D....
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| fox
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http://www.prep4usmle.com/forum/thread/33810/1
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| ManuNastai
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thanks
___________________
"Love is the only inflamation of the heart that drains in the vagina" (translation after Dr Petre Florescu, Professor of Pathology, UMF "Iuliu Hatieganu", Cluj Napoca
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| NE
Forum Guru
Topics: 53
Posts: 504
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Yes, 47 is D- sorry for the mistake!
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