The physician orders Salagen 10 mg po twice a day for dry eyes. The medication is supplied in 5-mg tablets. How many tablets will the nurse administer?
1 tablet
2 tablets
3 tablets
4 tablets
The Correct Answer is B
Choice A reason: One 5-mg tablet delivers 5 mg; this underdoses the 10 mg ordered, reducing salivation stimulation needed for dry eye relief.
Choice B reason: Two 5-mg tablets equal 10 mg; this matches the order, ensuring therapeutic cholinergic effect to increase tear production effectively.
Choice C reason: Three tablets (15 mg) overdose; excess pilocarpine risks side effects (e.g., sweating, bradycardia) without added benefit for dry eyes.
Choice D reason: Four tablets (20 mg) far exceed the dose; this could cause severe cholinergic toxicity, including respiratory distress, outweighing therapeutic intent.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Bed rest increases clot risk and deconditioning; vasodilators lower pressure, but mobility is beneficial unless contraindicated, making this overly restrictive.
Choice B reason: Assisting ambulation helps, but it’s less proactive; it doesn’t address orthostatic hypotension risks at initiation of movement, where falls are most likely.
Choice C reason: Monitoring intake/output tracks fluid status, not directly addressing vasodilation’s hypotensive effects during position changes, missing the primary safety concern.
Choice D reason: Rising slowly counters orthostatic hypotension from vasodilation; it allows autoregulation to stabilize pressure, reducing fall risk in an active elderly patient.
Correct Answer is A
Explanation
Choice A reason: Narcotics are controlled substances requiring strict accountability; two nurses—one ending and one starting the shift—verify counts to ensure accuracy and prevent diversion per regulatory standards.
Choice B reason: The head nurse and pharmacist may oversee inventory, but shift change counts involve direct caregivers for real-time accuracy, not administrative staff, ensuring immediate responsibility and oversight.
Choice C reason: Involving all nurses from both shifts is impractical and unnecessary; it dilutes accountability and increases error risk, as only two are needed to confirm the count efficiently.
Choice D reason: Pharmacy technicians lack authority over unit narcotics, and the charge nurse alone doesn’t suffice; two nurses ensure a witnessed, reliable count per hospital policy and law.
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