Nokea
Which of the following drugs used to treat Alzheimer's disease is not an anticholinergic?
- A. Donepezil
- B. Memantine
- C. Rivastigmine
- D. Galantamine
Correct Answer: B
Rationale: Memantine is an NMDA receptor antagonist, not an anticholinesterase like the others.
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Which of the following NSAIDs is a selective COX-2 inhibitor?
- A. Indomethacin
- B. Meloxicam
- C. Etoricoxib
- D. Mefenamic acid
Correct Answer: C
Rationale: Etoricoxib is a highly selective COX-2 inhibitor, reducing GI side effects compared to non-selective NSAIDs.
A nurse in a provider's office is instructing a parent of a toddler how to administer ear drops. Which of the following instructions should the nurse include? (Select one that does not apply.)
- A. Place the child on his unaffected side when you are ready to administer the medication.
- B. Warm the medication by gently rolling it between your hands for a few minutes.
- C. Gently shake medication that is in suspension form.
- D. Keep the child on his side for 5 minutes after institution of the ear drops.
Correct Answer: C
Rationale: Side position , warming , and keeping on side ensure proper administration and absorption.
Patients with pheochromocytoma should avoid which of the following classes of drugs because of the possibility of developing hypertensive crisis?
- A. Expectorants
- B. Beta-2-agonists
- C. Antitussives
- D. Antihistamines
Correct Answer: B
Rationale: Beta-2-agonists can stimulate catecholamine release in pheochromocytoma, risking hypertensive crisis; other classes are safer.
A nurse is preparing to administer clindamycin 200 mg by intermittent IV bolus. The amount available is clindamycin injection 200 mg in 100 mL 0.9% sodium chloride (0.9% NaCl) to infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 200
- B. 180
- C. 250
- D. 500
Correct Answer: A
Rationale: Calculation: (100 mL / 30 min) 60 min/hr = 200 mL/hr, matching the provided answer.
Drugs which increase GABA levels in brain
- A. Diazepam
- B. Phenobarbitone
- C. Sodium valproate
- D. Carbamazepine
Correct Answer: C
Rationale: Sodium valproate increases GABA levels.