ATI RN
ATI Pharmacology Proctored Exam 2023
1. While caring for a client receiving Heparin therapy, which of the following laboratory tests should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. INR
- C. aPTT
- D. Platelet count
Correct answer: C
Rationale: The nurse should monitor the aPTT (activated partial thromboplastin time) when caring for a client receiving Heparin therapy. The aPTT reflects the intrinsic pathway of the clotting cascade and is used to monitor the effectiveness of heparin, which primarily affects this pathway by potentiating antithrombin III. Monitoring the aPTT helps ensure that the client's blood is within the therapeutic range to prevent thrombus formation. Choices A, B, and D are incorrect. PT (Prothrombin Time) and INR (International Normalized Ratio) are used to monitor Warfarin therapy, not Heparin. Platelet count is important in assessing for thrombocytopenia but is not a specific indicator of Heparin therapy effectiveness.
2. A client has a new prescription for levothyroxine. Which of the following instructions should the nurse include?
- A. Take this medication at bedtime.
- B. Take this medication with food.
- C. Take this medication on an empty stomach in the morning.
- D. Take this medication with an antacid.
Correct answer: C
Rationale: Levothyroxine should be taken on an empty stomach in the morning to enhance its absorption. This timing allows for optimal absorption and effectiveness of the medication. Taking it with food, at bedtime, or with an antacid may interfere with its absorption and reduce its efficacy.
3. A client is prescribed Ranitidine. Which of the following laboratory results should be monitored by the nurse?
- A. Complete blood count (CBC).
- B. Serum creatinine.
- C. Serum potassium.
- D. Serum glucose.
Correct answer: A
Rationale: Ranitidine can potentially lead to blood dyscrasias, necessitating the monitoring of the client's CBC. Checking the CBC can help detect any abnormalities in blood cell counts and assess the client's overall hematologic status during Ranitidine therapy.
4. A client has a new prescription for Dabigatran. Which of the following instructions should be included?
- A. Take the medication with food.
- B. Store the capsules in a pill organizer.
- C. Crush the medication before swallowing.
- D. Expect frequent headaches while taking this medication.
Correct answer: A
Rationale: The correct answer is A: 'Take the medication with food.' Taking Dabigatran with food is recommended to reduce gastrointestinal discomfort, a common side effect associated with this medication. Food can help minimize stomach irritation and improve tolerability. Choices B, C, and D are incorrect. Storing the capsules in a pill organizer (B) is a good practice for organization but not a specific instruction for this medication. Crushing the medication before swallowing (C) is not recommended for Dabigatran as it is available as a capsule and should be swallowed whole. Expecting frequent headaches while taking this medication (D) is not a common side effect of Dabigatran and should not be anticipated.
5. When completing a nursing history for a client taking Simvastatin, which of the following disorders should the nurse identify as a contraindication to adding Ezetimibe to the client's medications?
- A. History of severe constipation
- B. History of hypertension
- C. Active hepatitis C
- D. Type 2 diabetes mellitus
Correct answer: C
Rationale: Ezetimibe is contraindicated in clients with active moderate-to-severe liver disorders, particularly if they are already on a statin like simvastatin. Hepatitis C is a liver condition that can be exacerbated by Ezetimibe, leading to potential complications. Therefore, the nurse should identify active hepatitis C as a contraindication to adding Ezetimibe to the client's medications. Choices A, B, and D are incorrect because they are not directly related to the contraindication of Ezetimibe in clients taking Simvastatin.
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