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HESI RN · HESI Pharmacology · Pharmacology CNS Drugs Classification

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Angel dust refers to

A. LSD

B. Phencyclidine

C. MDMA

D. MDA

Expert Explanatory Rationale

Correct Answer: Phencyclidine

Question 2 of 5

ÃƒÅ½Ã‚Â±-Glucosidase, an enzyme that is inhibited by acarbose, is responsible for:

A. Untwisting of DNA strands during cancer cell replication

B. Resistance to cephalosporins

C. Carbohydrate digestion in and absorption from the gut

D. Toxicity caused by methotrexate

Expert Explanatory Rationale

Correct Answer: Carbohydrate digestion in and absorption from the gut

Question 3 of 5

Which of the following benzodiazepines has the shortest half-life?

A. Alprazolam

B. Oxazepam

C. Clonazepam

D. Midazolam

Expert Explanatory Rationale

Correct Answer: Midazolam

Question 4 of 5

A woman taking haloperidol develops a spectrum of adverse effects that include the amenorrhea-galactorrhea syndrome and extrapyramidal dysfunction. Her psychiatrist prescribes a newer antipsychotic drug that improves both positive and negative symptoms of schizophrenia with fewer dopamine receptor blockade side effects. Since weekly blood tests are not deemed necessary, the drug prescribed by the psychiatrist is probably

A. Bupropion

B. Clozapine

C. Nefazodone

D. Olanzapine

Expert Explanatory Rationale

Correct Answer: Olanzapine

Question 5 of 5

Vivactil (protriptyline) is used mainly as a (an)

A. Analgesic

B. Muscle relaxant

C. Cardiotonic

D. Antidepressant

Expert Explanatory Rationale

Correct Answer: Antidepressant

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