ATI RN
ATI Pharmacology Proctored Exam 2024 Questions
Question 1 of 5
A patient will be receiving a thrombolytic drug as part of the treatment for acute myocardial infarction. The nurse explains to the patient that this drug is used for which purpose?
Correct Answer: C
Rationale: Thrombolytic drugs, also known as clot busters, are used to dissolve blood clots, specifically in the coronary artery for patients with acute myocardial infarction (heart attack). These medications work by activating the body's natural plasminogen system to break down the clot and restore blood flow to the heart muscle. By helping to dissolve the clot, thrombolytic therapy can help to minimize damage to the heart muscle and improve the patient's outcome following a heart attack. It is crucial for patients to receive this treatment promptly after the onset of symptoms for the best chance of success.
Question 2 of 5
When converting from IV heparin to oral warfarin (Coumadin) therapy, the prescriber monitors which of the following to determine the next appropriate dose of warfarin?
Correct Answer: D
Rationale: When converting from IV heparin to oral warfarin therapy, the prescriber monitors the Prothrombin Time (PT) and International Normalized Ratio (INR) to determine the next appropriate dose of warfarin. PT measures the time it takes for blood to clot and INR helps standardize PT results. These tests are crucial in evaluating and adjusting the dosage of warfarin to achieve the desired anticoagulant effect while minimizing the risk of bleeding. Monitoring PT/INR levels regularly is essential to ensure that the patient receives the correct dose of warfarin for their specific condition and to prevent complications. Platelet levels, aPTT, and red blood cell count are not typically used to monitor warfarin therapy.
Question 3 of 5
A client with chronic kidney disease has a new prescription for epoetin alfa. The nurse should instruct the client to increase dietary intake of which of the following substances?
Correct Answer: A
Rationale: Patients with chronic kidney disease are often prescribed epoetin alfa to treat anemia. Epoetin alfa stimulates red blood cell production, increasing the body's demand for iron to support this process.
Therefore, clients taking epoetin alfa should be advised to increase their dietary intake of iron-rich foods to meet the increased demand and prevent iron deficiency anemia.
Question 4 of 5
When admitting a client and completing a preassessment before administering medications, which of the following data should the nurse include? (Select all that apply.)
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Which of the following describes the action of an agonist on a receptor.
Correct Answer: C
Rationale: An agonist is a substance that binds to a receptor and activates it, leading to a biological response. Agonists mimic the action of endogenous ligands that normally bind to the receptor, resulting in activation of downstream signaling pathways. This activation can lead to various physiological effects depending on the specific receptor and pathway involved. In contrast, antagonists block or inhibit the actions of agonists by binding to the receptor without activating it, therefore not producing a response.
Therefore, the correct answer is that an agonist activates a receptor.