Nokea
Theophylline levels in blood are increased by:
- A. Erythromycin
- B. Ciprofloxacin
- C. Smoking
- D. Digitalis
Correct Answer: A
Rationale: Erythromycin inhibits theophylline metabolism, raising levels.
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A patient who has oral candidiasis will begin using nystatin suspension to treat the infection. What information will the nurse include when teaching this patient?
- A. Coat the buccal mucosa with the drug and then rinse your mouth
- B. Gargle with the nystatin and then spit it out without swallowing
- C. Mix the suspension with 4 ounces of water and then drink it
- D. Swish the liquid in your mouth and then swallow after a few minutes
Correct Answer: D
Rationale: Nystatin should coat the mouth and be swallowed for oral candidiasis; spitting or rinsing reduces efficacy. Patients should be taught to swish the suspension in the mouth to coat the tongue and buccal mucosa and then swallow the medication.
A nurse is teaching a client who has a new prescription for Dextromethorphan to suppress a cough. The nurse should instruct the client to monitor for which of the following adverse effects of this medication?
- A. Diarrhea
- B. Anxiety
- C. Sedation
- D. Palpitations
Correct Answer: C
Rationale: Dextromethorphan can cause sedation , a common side effect of this cough suppressant.
Teaching the patient/caregiver about her or his medications is an important step in reducing the risk of medication errors. What is an important teaching point about medications?
- A. Speak up and ask questions.
- B. Store medications in a warm humid place.
- C. Adjust your medication according to how you feel
- D. take medication wen in pain
Correct Answer: A
Rationale: Asking questions and keeping a medication list empower patients to reduce errors; warm storage and self-adjustment are incorrect.
The ganglion blocking drugs act by
- A. Competing with acetylcholine at neuromuscular junctions
- B. Preventing release of acetylcholine
- C. Preventing nerve conduction in post ganglionic segment
- D. Preventing catecholamine release or inactivating it
Correct Answer: B
Rationale: Ganglion blockers (e.g., hexamethonium) prevent acetylcholine release at ganglia.
A 22-year-old patient calls the clinic and tells the nurse that she has been depressed and is thinking about taking St. John's wort but wants to know if it is safe first. The nurse begins by questioning what other medications the patient takes and would be concerned about a drug-alternative drug interaction if the patient is also taking what type of medication?
- A. Antihistamines
- B. Analgesics
- C. Antibiotics
- D. Oral contraceptives
Correct Answer: D
Rationale: St. John's wort can interact with oral contraceptives that alter drug metabolism, which can decrease the effectiveness of the contraceptive. Analgesics, antibiotics, and antihistamines can be taken in combination with St. John's wort without known adverse effects.