ATI RN
Advanced Pharmacology Test Bank Questions
Question 1 of 5
A local municipality is alerted that low doses of carbon tetrachloride have been dumped into the drinking water. A public health alert is transmitted to all residents of this town. Which of the following signs and symptoms should these residents be aware of?
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
Which of the following agents exerts its therapeutic effect in multiple sclerosis via potassium channel blockade?
Correct Answer: A
Rationale: Dalfampridine treats MS by blocking potassium channels in demyelinated axons, enhancing nerve conduction and improving walking ability. Exposed potassium channels in MS leak current, impairing signal propagation; dalfampridine's blockade restores function. Donepezil boosts acetylcholine for Alzheimer's. Riluzole reduces glutamate in ALS. Bromocriptine, a dopamine agonist, manages Parkinson's. Dalfampridine's unique potassium channel action directly addresses MS's neurological deficit, supported by clinical evidence, making it the correct agent here.
Question 3 of 5
An adolescent client will receive Depo-Provera as a method of birth control. She asks the nurse how long the drug will be effective. What is the best response by the nurse?
Correct Answer: D
Rationale: Depo-Provera, a progestin injection, provides contraception by inhibiting ovulation for 3 months , requiring re-administration every 12 weeks. This duration is based on its pharmacokinetic profile, ensuring reliable hormone levels. Two months underestimates, risking unprotected gaps. Six months or 1 year overestimate, reducing efficacy mid-cycle. The nurse's accurate response (D) educates the client on timing, ensuring adherence and preventing unintended pregnancy, aligning with clinical standards for injectable contraceptives.
Question 4 of 5
The nurse manages care for several clients receiving hormone replacement therapy (HRT). What will the priority assessment by the nurse include as related to side effects?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
The nurse administers IV push hydralazine (Apresoline) to a client with severe hypertension. Which assessment finding requires immediate action?
Correct Answer: B
Rationale: Hydralazine, a vasodilator, lowers blood pressure but triggers reflex tachycardia. A heart rate of 110 bpm indicates significant compensation, risking ischemia or strain, requiring immediate action (e.g., slowing infusion, notifying physician). BP of 140/90 is improved, not critical. Headache and flushing are expected from vasodilation, less urgent. Tachycardia's potential to destabilize circulation, especially in severe hypertension, aligns with hydralazine's pharmacology'arteriolar relaxation prompts sympathetic response. This finding demands swift intervention to prevent cardiovascular collapse, making B the priority over manageable side effects.