a nurse is caring for a client who is receiving heparin therapy which of the following laboratory tests should the nurse monitor to evaluate the thera
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam 2024

1. A healthcare professional is caring for a client who is receiving heparin therapy. Which of the following laboratory tests should the healthcare professional monitor to evaluate the therapeutic effect of heparin?

Correct answer: C

Rationale: The correct test to monitor the therapeutic effect of heparin is the activated partial thromboplastin time (aPTT). Heparin's action is to prolong the clotting time, and aPTT reflects this effect. Monitoring aPTT helps ensure that the client is within the therapeutic range to prevent clot formation while minimizing the risk of bleeding complications. PT/INR is used to monitor warfarin therapy, platelet count assesses for potential thrombocytopenia, and WBC count evaluates for signs of infection or inflammation, not the therapeutic effect of heparin.

2. A client has a new prescription for Amiodarone. Which of the following instructions should the nurse include?

Correct answer: B

Rationale: The correct instruction the nurse should include is to advise the client to avoid drinking grapefruit juice while taking Amiodarone. Grapefruit juice can inhibit the metabolism of Amiodarone, leading to increased blood levels of the medication and raising the risk of adverse effects, such as cardiac toxicity. Choices A, C, and D are incorrect. Taking Amiodarone with meals, at bedtime, or increasing intake of sodium-rich foods are not necessary instructions for this medication.

3. When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor?

Correct answer: D

Rationale: Corrected Question: When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor? Amitriptyline is known to cause orthostatic hypotension, a sudden drop in blood pressure when moving from lying down or sitting to a standing position. Monitoring for orthostatic hypotension is crucial to prevent falls and related injuries. Educating the client about moving slowly and changing positions gradually can help mitigate this adverse effect. Choices A, B, and C are incorrect because decreased appetite, explosive diarrhea, and decreased pulse rate are not commonly associated with Amitriptyline use. Therefore, the correct answer is D.

4. A client is taking Epoetin Alfa for anemia. Which of the following laboratory tests should the nurse monitor to evaluate the effectiveness of the therapy?

Correct answer: C

Rationale: The nurse should monitor the hematocrit level to evaluate the effectiveness of Epoetin Alfa therapy since it stimulates red blood cell production. Hematocrit reflects the volume of red blood cells in the blood, providing a direct measure of the therapy's impact on increasing red blood cell mass and addressing anemia. Monitoring white blood cell count and platelet count is not directly related to assessing the effectiveness of Epoetin Alfa therapy for anemia. Serum potassium level monitoring may be necessary due to potential side effects of the medication, but it is not the primary indicator of therapy effectiveness in treating anemia.

5. A client has a prescription for Timolol eye drops for the treatment of glaucoma. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: The correct instruction for the nurse to include is to apply gentle pressure to the nasolacrimal duct for 30 to 60 seconds after application. This technique helps prevent systemic absorption of the medication, reducing the risk of systemic side effects. By applying pressure, the drainage of the medication into the bloodstream through the nasolacrimal duct is minimized, enhancing the drug's local ocular effects. Choices B, C, and D are incorrect because blinking immediately after instilling the drops, keeping eyes closed for 5 minutes, and administering the drops directly onto the cornea are not recommended practices for administering Timolol eye drops.

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