Nokea
The nurse telephones the HCP to request a pm anxiolytic medication order for a hospitalized client having occasional anxiety. Which medication, if prescribed, should the nurse question regarding its effectiveness for prn use?
- A. Buspirone
- B. Lorazepam
- C. Clorazepate
- D. Clonazepam
Correct Answer: A
Rationale: Buspirone (BuSpar) has a 10- to 14-day delay in therapeutic onset, making it unsuitable for prn use.
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The child is to start on medication therapy for enuresis that has not resolved with behavioral interventions. Which medication should the nurse anticipate being prescribed for the child?
- A. Lorazepam
- B. Desmopressin
- C. Nitrofurantoin
- D. Spironolactone
Correct Answer: B
Rationale: A: Lorazepam (Ativan) is a benzodiazepine used to treat anxiety. A side effect is drowsiness, which could impair a child's ability to waken for voiding. B: Desmopressin (DDAVP) is an analog of arginine vasopressin, which acts as an antidiuretic. It promotes resorption of water in the renal tubule or decreases bladder filling. C: Nitrofurantoin (Macrobid) is a urinary tract antiseptic used to treat UTIs and would not be used with enuresis. D: Spironolactone (Aldactone) is a potassium-sparing diuretic that would promote, not inhibit, diuresis.
The client has been on vancomycin for three days. Which of the following symptoms is least concerning?
- A. nausea
- B. headache
- C. vertigo
- D. tinnitus
Correct Answer: B
Rationale: Vancomycin can cause ototoxicity, and tinnitus, vertigo, and nausea are symptoms of this condition. Headache is not typically associated with vancomycin's side effects.
The client seeking treatment for insomnia tells the nurse about researching complementary therapies for promoting sleep. Which are herbal remedies for promoting sleep that the client may wish to discuss with the nurse?
- A. Fennel and ginger tea
- B. Chamomile tea and hops
- C. Feverfew and peppermint
- D. Echinacea and goldenseal
Correct Answer: B
Rationale: Chamomile tea and hops are believed to relieve insomnia.
The client is prescribed varenicline for smoking cessation. The nurse concludes that varenicline is being prescribed primarily for its antagonistic effect. Which statement describes this effect?
- A. Gets readily absorbed into the bloodstream for rapid effectiveness
- B. Demonstrates a high degree of attractiveness for a specific receptor
- C. Blocks receptors in the brain that produce the pleasurable effects of smoking
- D. Stimulates receptors stimulated by smoking, producing similar pleasurable effects.
Correct Answer: C
Rationale: Varenicline (Chantix) functions as an antagonist, blocking receptors to reduce the pleasurable effects of smoking.
The factor that most determines drug distribution is:
- A. vascular perfusion of the tissue or organ.
- B. salt form.
- C. drug interactions.
- D. steady state.
Correct Answer: A
Rationale: Drugs are distributed via the circulatory system. Adequate perfusion is necessary for distribution of a drug. The other choices are not as dependent on adequate perfusion.