Nokea
Drug of choice in motion sickness is
- A. Metoclopramide
- B. Transdermal scopalamine
- C. Diphenhydramine
- D. Chlorpromazine
Correct Answer: B
Rationale: Transdermal scopolamine is the drug of choice for motion sickness.
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Off-label prescribing is:
- A. Regulated by the U.S. Food and Drug Administration
- B. Illegal by NPs in all states (provinces)
- C. Legal if there is scientific evidence for the use
- D. Regulated by the Drug Enforcement Administration
Correct Answer: C
Rationale: Off-label prescribing is legal with scientific support , not FDA-regulated , universally illegal , or DEA-controlled .
An order is written for oxazepam for a 6-year-old child. The nurse notices that there is no established dosage for children 6 to 12 years of age. Knowing that the usual adult dose is 10 mg t.i.d., what would the nurse calculate the appropriate dose to be?
- A. 0.03 mg t.i.d.
- B. 0.3 mg t.i.d.
- C. 1.8 mg t.i.d.
- D. 3.3 mg t.i.d.
Correct Answer: D
Rationale: Because the nurse only knows the child's age, the nurse would need to use Young's Rule to determine the appropriate dosage. Use the formula, child's dose equals the age of the child in years divided by the child's age plus 12 times the average adult dose to calculate the answer. Dose = (6/[6+12]) 10 mg (6/18 = 0.33 10 = 3.3).
The nurse receives an order to administer an unfamiliar medication and obtains a nurse's drug guide published four years earlier. What is the nurse's most prudent action?
- A. Find a more recent reference source.
- B. Use the guide if the drug is listed.
- C. Ask another nurse for drug information.
- D. Verify the information in the guide with the pharmacist.
Correct Answer: A
Rationale: The nurse is responsible for all medications administered and must find a recent reference source to ensure the information learned about the medication is correct and current. Using an older drug guide could be dangerous because it would not contain the most up-to-date information. Asking another nurse or the pharmacist does not guarantee accurate information will be obtained and could harm the patient if the information is wrong.
After a few weeks on a drug, a patient reports profound thirst and the production of large volumes of dilute urine (polyuria). Which of the following drugs is most likely responsible for the symptoms?
- A. Diazepam
- B. Fluoxetine
- C. Haloperidol
- D. Lithium
Correct Answer: D
Rationale: Lithium causes nephrogenic diabetes insipidus, leading to thirst and polyuria.
Which of the following is a representative of sulfonylurea?
- A. Metformin
- B. Sitagliptine
- C. Acarbose
- D. Chlorpropamide
Correct Answer: D
Rationale: Chlorpropamide is a sulfonylurea that stimulates insulin release from pancreatic beta cells.