Nokea
Adherence to beta blocker therapy may be affected by their:
- A. Short half-lives requiring twice daily dosing
- B. Tendency to elevate lipid levels
- C. Effects on the male genitalia, which may produce impotence
- D. None of the above
Correct Answer: C
Rationale: Impotence is a known side effect that can reduce adherence to beta blockers.
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Which name identifies a drug listed by the US Food and Drug Administration (FDA)?
- A. Brand
- B. Nonproprietary
- C. Official
- D. Trademark
Correct Answer: C
Rationale: The official name is the name under which a drug is listed by the FDA. The brand name, or trademark, is the name given to a drug by its manufacturer. The nonproprietary, or generic, name is provided by the United States Adopted Names Council.
Not an antidepressant
- A. Amitryptilline
- B. Fluoxetin
- C. Trazodone
- D. Pimozide
Correct Answer: D
Rationale: Pimozide is an antipsychotic, not an antidepressant.
A 35-year-old woman has Graves' disease, a small goiter, and symptoms that are deemed 'mild-to-moderate.' Propylthiouracil is prescribed. Which of the following is the most serious adverse response to this drug, for which close monitoring is required?
- A. Agranulocytosis
- B. Cholestatic jaundice
- C. Gout
- D. Renal tubular necrosis
Correct Answer: A
Rationale: Agranulocytosis is a severe, potentially fatal side effect of propylthiouracil requiring close monitoring due to its impact on white blood cell production.
The patient, diagnosed with cancer, is receiving morphine sulfate (a potent narcotic pain reliever) to relieve cancer pain. Approximately every 7 days the medication is no longer effective in controlling the patient's pain and a larger dose is needed to have the same effect. How might the nurse explain why this is happening?
- A. Tolerance
- B. Cumulation
- C. Interactions
- D. Addiction
Correct Answer: A
Rationale: The body may develop a tolerance to some drugs over time. Tolerance may arise because of increased biotransformation of the drug, increased resistance to its effects, or other pharmacokinetic factors. When tolerance occurs, the amount of the drug no longer causes the same reaction. Therefore, increasingly larger doses are needed to achieve a therapeutic effect. Cumulative effect occurs when the drug is not properly eliminated and more of the drug is administered, resulting in toxic levels accumulating. Interactions occur when the drug reacts badly with another substance such as food, another drug, or an alternative or complementary therapy. Addiction is the psychological need for a substance.
As an antacid, sodium bicarbonate has the following disadvantages EXCEPT:
- A. It causes acid rebound
- B. In ulcer patients, it increases risk of perforation
- C. It has low acid neutralizing capacity
- D. It is contraindicated in CHF
Correct Answer: C
Rationale: Sodium bicarbonate has high acid-neutralizing capacity, but it causes acid rebound, risks perforation in ulcers due to gas production, and is contraindicated in CHF due to sodium load.