Bromocriptine is (select one that does not apply)
- A. A partial agonist of dopamine
- B. A partial antagonist of dopamine
- C. Used in the treatment of parkinsonism
- D. Used to reduce GH secretion in acromegaly
Correct Answer: B
Rationale: Bromocriptine is a dopamine agonist used in parkinsonism and acromegaly; all except B are correct.
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A patient with a new onset of systolic ejection murmur should be assessed for which nutritional deficiency?
- A. Vitamin B12
- B. Vitamin C
- C. Folate
- D. Niacin
Correct Answer: A
Rationale: Vitamin B12 deficiency can lead to anemia, potentially causing a systolic murmur.
A patient with anxiety and depression may respond to:
- A. Duloxetine (Cymbalta)
- B. Fluoxetine (Prozac)
- C. Oxazepam (Serax)
- D. Buspirone (Buspar) and an SSRI combined
Correct Answer: D
Rationale: Buspirone (anxiolytic) with an SSRI addresses both anxiety and depression effectively.
Isotretinoin is prescribed for a client with severe acne. Before the administration of this medication, the nurse anticipates that which laboratory test will be prescribed?
- A. Platelet count
- B. Triglyceride level
- C. Complete blood count
- D. White blood cell count
Correct Answer: B
Rationale: Isotretinoin can elevate triglyceride levels. Blood triglyceride levels should be measured before treatment and periodically thereafter until the effect on the triglycerides has been evaluated. Options 1, 3, and 4 do not need to be monitored specifically during this treatment.
The mean weight of 500 college students is 70 kg and the standard deviation is 3 kg. Assuming that the weight is normally distributed, determine how many students weigh more than 90 kg.
- B. 5
- C. 10
- D. 15
Correct Answer: A
Rationale: Z-score: (90-70)/3 = 6.67. P(Z > 6.67) is effectively 0 since it's far beyond the normal distribution's tail (P(Z < 6.67) ≈ 1), so 0 students, consistent with the document's calculation.
Drugs do not metabolize the same way in all people. For what patient would a nurse expect to assess for an alteration in drug metabolism?
- A. A 35-year-old woman with cervical cancer
- B. A 41-year-old man with kidney stones
- C. A 50-year-old man with cirrhosis of the liver
- D. A 62-year-old woman in acute renal failure
Correct Answer: C
Rationale: The liver is the most important site of drug metabolism. If the liver is not functioning effectively, as in patients with cirrhosis, drugs will not metabolize normally so that toxic levels could develop unless dosage is reduced. A patient with cervical cancer or kidney stones would not be expected to have altered ability to metabolize drugs so long as no liver damage existed. The patient with renal failure would have altered excretion of the drugs through the renal system but metabolism would not be impacted.