ATI RN
Proctored Pharmacology ATI Questions
Question 1 of 5
The following is most suitable for thromboembolic prophylaxis in a patient with a left ventricular aneurysm following a myocardial infarction three months ago:
Correct Answer: C
Rationale: A left ventricular aneurysm post-MI risks thrombus formation due to stasis, necessitating anticoagulation. IV heparin is acute, not outpatient prophylaxis, impractical here. Subcutaneous enoxaparin prevents thromboembolism short-term (e.g., post-surgery), but its duration suits weeks, not months. Oral warfarin, a vitamin K antagonist, provides long-term anticoagulation (INR 2-3), ideal for chronic prophylaxis against mural thrombi embolizing to systemic circulation, most suitable three months post-MI. Oral aspirin (antiplatelet) or aspirin plus clopidogrel targets arterial clots, less effective for ventricular stasis-related venous thrombi. Warfarin's sustained effect reduces stroke risk, critical in this structural heart defect.
Question 2 of 5
While discussing antihypertensives, the instructor states that a particular agent causes a reduction in blood pressure by blocking receptor sites. The student wishing to understand this statement would research which drug information?
Correct Answer: D
Rationale: Blocking receptor sites to lower blood pressure describes the drug's mechanism of action-how it works (e.g., beta-blockers on adrenergic receptors). Interactions detail combined effects. Adverse effects list risks. Indication states purpose (hypertension). Mechanism explains the receptor-blocking process, key to understanding the statement, aligning with pharmacology's focus on action.
Question 3 of 5
The toddler refuses to take his oral medication. What is the best suggestion to the mother from the nurse for ensuring the toddler receives his medication?
Correct Answer: B
Rationale: Toddlers (1-3) resist meds-crushing a tablet (if safe) and mixing with jam masks taste, easing intake, per developmental needs. Bribery with toys may not work long-term. Milk risks interactions (e.g., tetracycline) or dilution. Punishment distresses, not helps. Jam leverages taste preference, ensuring delivery.
Question 4 of 5
Which drug type used to treat depression works by preventing enzymatic destruction of the neurotransmitter norepinephrine?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
A 52-year-old man undergoes three surgical procedures in a 2-week period involving debridement of a deep skin abscess. Each surgical anesthesia procedure involves the use of halothane. Which of the following pathologic processes is possible as a result of the surgical procedures?
Correct Answer: B
Rationale: Repeated halothane anesthesia risks hepatic necrosis . Halothane, a halogenated anesthetic, can cause hepatitis or necrosis, especially with multiple exposures, due to toxic metabolites. Cholelithiasis , kidney stones , steatorrhea , and tinnitus (E) aren't linked. Hepatic necrosis, though rare, is a documented risk, particularly in short-interval surgeries, making it the plausible complication here.