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 Sulfasalazine for the treatment of Crohn's disease. Which of the following instructions should the nurse include?
- A. Expect orange-yellow discoloration of urine and skin.
- B. Take the medication with food.
- C. Do not discontinue the medication if a sore throat occurs.
- D. Avoid prolonged exposure to sunlight.
Correct answer: A
Rationale: The correct answer is A: 'Expect orange-yellow discoloration of urine and skin.' Sulfasalazine can cause this harmless side effect, which does not require discontinuation of the medication. Option B is incorrect because Sulfasalazine is usually taken with food to minimize gastrointestinal side effects. Option C is incorrect as a sore throat is not a common reason to stop the medication. Option D is not directly related to the side effects of Sulfasalazine.
3. When educating a client with a new prescription for Amlodipine, which instruction should the nurse provide?
- A. Increase your intake of dairy products.
- B. Avoid driving until you see how the medication affects you.
- C. Stop taking the medication if you develop a dry cough.
- D. Take the medication at bedtime.
Correct answer: B
Rationale: The correct answer is to advise the client to avoid driving until they understand the medication's effects. Amlodipine can cause dizziness, making it unsafe to drive until the client knows how the medication affects them. This instruction promotes client safety and prevents potential accidents due to medication side effects.
4. A client is taking metformin for type 2 diabetes. Which of the following findings should indicate to the nurse that the medication is effective?
- A. Increased urine output
- B. Decreased fasting blood glucose
- C. Decreased hemoglobin A1C
- D. Decreased polyuria
Correct answer: C
Rationale: A decrease in hemoglobin A1C is a more specific indicator of metformin's effectiveness in controlling blood glucose levels over a longer period compared to fasting blood glucose levels. Hemoglobin A1C reflects average blood sugar levels over the past 2-3 months, providing a more comprehensive view of glycemic control. Increased urine output (choice A) is not a direct indicator of metformin's effectiveness and can be influenced by various factors. Decreased fasting blood glucose (choice B) can fluctuate due to various reasons and may not provide a reliable long-term assessment of metformin's efficacy. Decreased polyuria (choice D) refers to a symptom rather than a direct measure of metformin's effectiveness in managing diabetes.
5. A client has a new prescription for Enalapril. Which of the following adverse effects should the nurse instruct the client to monitor?
- A. Dry cough.
- B. Hyperglycemia.
- C. Weight gain.
- D. Increased urination.
Correct answer: A
Rationale: The correct answer is A: Dry cough. A common adverse effect of Enalapril, an ACE inhibitor, is a persistent dry cough. This occurs due to the accumulation of bradykinin. It is essential for the client to monitor for this side effect and report it to their healthcare provider promptly. Choices B, C, and D are incorrect because hyperglycemia, weight gain, and increased urination are not typically associated with Enalapril use.
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