ATI LPN
NCLEX PN Questions on Pharmacology Questions
Question 1 of 9
The disadvantage of e-prescribing includes:
Correct Answer: A
Rationale: Choice A is correct because computer downtime or outages disrupt e-prescribing, delaying care, a known limitation. Choice B is incorrect as improved legibility is an advantage, not a disadvantage. Choice C is wrong because reduced errors are a benefit. Choice D is incorrect since confidentiality is enhanced, not a drawback.
Question 2 of 9
A patient who takes warfarin (Coumadin) experiences excessive bleeding, even though serum drug levels are normal. The primary care NP should question this patient about the use of:
Correct Answer: D
Rationale: The correct answer is D because ginkgo biloba decreases blood viscosity, enhancing warfarin’s bleeding risk. Choices A, B, and C are incorrect as they don’t significantly affect bleeding with warfarin.
Question 3 of 9
An 80-year-old woman has chronically low hemoglobin despite a diet high in iron. The primary care nurse practitioner (NP) will perform laboratory tests to confirm a diagnosis and should suspect the patient will need:
Correct Answer: B
Rationale: The correct answer is B because elderly women are prone to folic acid deficiency, impairing hemoglobin synthesis despite iron intake. Choice A is incorrect (omega-3 unrelated). Choice C is wrong (multivitamin iron insufficient). Choice D is inaccurate (dietary folic acid less effective).
Question 4 of 9
Prescription requirements for controlled substances include:
Correct Answer: A
Rationale: Choice A is correct because Schedule II drugs (e.g., oxycodone) require a written prescription without refills, per DEA rules. Choice B is incorrect as refills are allowed for Schedule III-V, not a requirement. Choice C is wrong because e-prescribing is permitted with security. Choice D is incorrect since only A is a mandate.
Question 5 of 9
Drugs that may cause orthostatic hypotension in the elderly include:
Correct Answer: D
Rationale: Choice D is correct because amlodipine (vasodilation), prazosin (alpha blockade), and furosemide (volume depletion) can cause orthostatic hypotension, risky in the elderly, per studies. Choice A is incorrect alone as it's one drug. Choice B is wrong by itself because prazosin is just part. Choice C is incorrect solo since furosemide is only one agent.
Question 6 of 9
A patient receives an inhaled corticosteroid to treat asthma. The patient asks the primary care NP why the drug is given by this route instead of orally. The NP should explain that the inhaled form:
Correct Answer: C
Rationale: The correct answer is C because inhaled corticosteroids target the lungs directly, minimizing systemic side effects compared to oral forms. Choice A is incorrect as inhalation isn’t about slower absorption. Choice B is wrong since bioavailability is sufficient at the site. Choice D is inaccurate as dosing regulation isn’t necessarily easier.
Question 7 of 9
Drugs administered via IV:
Correct Answer: B
Rationale: Choice B is correct because IV drugs bypass absorption, entering the bloodstream directly and beginning distribution immediately, ensuring rapid onset. Choice A is incorrect as lipid solubility matters for oral absorption, not IV, where absorption isn't a factor. Choice C is wrong because ionization affects absorption in other routes, not IV delivery. Choice D is incorrect since pinocytosis is a cellular uptake mechanism, not relevant to IV administration.
Question 8 of 9
A patient reports fatigue and increased frequency of stools over the past week and reports having just begun a regimen of dietary changes to prevent hypertension. The primary care NP notes a rapid, irregular heart rate and a blood pressure of 92/58 mm Hg. The NP should question the patient about:
Correct Answer: D
Rationale: The correct answer is D because salt substitutes with potassium can cause toxicity (fatigue, arrhythmia), matching symptoms. Choice A is incorrect (caffeine raises BP). Choice B is wrong (B vitamins unrelated). Choice C is inaccurate (fat-soluble vitamins not linked).
Question 9 of 9
Drugs that may cause tolerance include:
Correct Answer: D
Rationale: Choice D is correct because benzodiazepines, opioids, and alcohol all cause tolerance, requiring higher doses for the same effect due to receptor adaptation, per pharmacology. Choice A is incorrect alone as it's one class. Choice B is wrong by itself because opioids are just part. Choice C is incorrect solo since alcohol is only one substance.