Nokea
A patient is to receive a daily dose of 240 mg of a medication. The dose is supposed to be divided evenly so that the drug is given every 6 hours. How much of the drug should be given at each dose?
- A. 30 mg
- B. 40 mg
- C. 50 mg
- D. 60 mg
Correct Answer: D
Rationale: Because there are 24 hours in a day, giving a drug every 6 hours would mean giving the drug four times a day. Because the total daily dose is 240 mg, dividing that dose by four would mean each dose should be 60 mg.
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The most frequent type of drug-food interaction is food:
- A. Causing increased therapeutic drug levels
- B. Affecting the metabolism of the drug
- C. Altering the volume of distribution of drugs
- D. Affecting the gastrointestinal absorption of drugs
Correct Answer: D
Rationale: Food most commonly affects drug absorption in the GI tract by altering pH, delaying gastric emptying, or binding to drugs, impacting bioavailability.
A nurse is teaching a client who has a new prescription for Diphenhydramine for allergic Rhinitis. The nurse should instruct the client to monitor for which of the following adverse reactions of this medication? (Select one that does not apply.)
- A. Dry mouth
- B. Nonproductive cough
- C. Urinary Hesitation
- D. Drowsiness
Correct Answer: B
Rationale: Diphenhydramine causes dry mouth , drowsiness , and urinary hesitation due to anticholinergic effects.
Ciprofloxacin increases the toxicity of theophylline by
- A. Inhibiting metabolism
- B. Decreasing excretion
- C. Decrease seizure threshold
- D. Promote absorption
Correct Answer: B
Rationale: Ciprofloxacin reduces theophylline clearance, decreasing excretion.
There is enough preliminary evidence to recommend that children with autism receive which supplemental nutrient?
- A. Vitamin B1 (thiamine)
- B. Vitamin B2 (riboflavin)
- C. Calcium
- D. Omega-3 fatty acids
Correct Answer: D
Rationale: Preliminary evidence suggests omega-3 fatty acids may benefit children with autism.
Tom is taking lithium for bipolar disorder. He should be taught to:
- A. Take his lithium with food
- B. Eat a diet with consistent levels of salt (sodium)
- C. Drink at least 2 quarts of water if he is in a hot environment
- D. Monitor blood glucose levels
Correct Answer: B
Rationale: Consistent sodium intake prevents fluctuations in lithium levels.