ATI RN
ATI Pharmacology Proctored Exam 2023
1. A healthcare professional is preparing to administer heparin 15,000 units subcutaneously every 12 hours. The available heparin injection is 20,000 units/mL. How many milliliters should the healthcare professional administer per dose?
- A. 0.8 mL
- B. 0.75 mL
- C. 0.5 mL
- D. 1 mL
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: Desired dose / Concentration = Volume to administer. In this case, (15,000 units / 20,000 units/mL) = 0.75 mL. Since the volume needs to be rounded up to the nearest tenth, the correct answer is 0.8 mL. Choice B (0.75 mL) is incorrect because it does not account for rounding up the volume. Choices C (0.5 mL) and D (1 mL) are incorrect as they do not reflect the precise calculation based on the given concentration and desired dose.
2. A client's serum Calcium is 8.8 mg/dL. Which of the following medications should the nurse anticipate administering to this client?
- A. Calcitonin-salmon
- B. Calcium carbonate
- C. Zoledronic acid
- D. Ibandronate
Correct answer: B
Rationale: The client's serum calcium level is below the expected reference range. In this case, the appropriate medication to anticipate administering is Calcium carbonate, an oral form of calcium used to increase serum calcium levels to the expected reference range.
3. A healthcare provider is providing discharge instructions to a client who has a new prescription for Warfarin. Which of the following foods should the provider instruct the client to avoid?
- A. Broccoli
- B. Bananas
- C. Chicken
- D. Potatoes
Correct answer: A
Rationale: Clients taking Warfarin should avoid foods high in vitamin K, such as broccoli, as they can interfere with the effectiveness of the medication. Vitamin K can counteract the anticoagulant effects of Warfarin, potentially leading to blood clotting issues. Broccoli is rich in vitamin K, so its consumption should be consistent to avoid fluctuations in the medication's effectiveness. Bananas, chicken, and potatoes are not known to significantly interact with Warfarin and do not pose a risk of affecting its anticoagulant properties.
4. What should you monitor when administering Clopidogrel to a patient?
- A. Signs of thrombotic thrombocytopenic purpura
- B. Bleeding during therapy
- C. CBC with differential and platelet count
- D. All of the above
Correct answer: D
Rationale: When administering Clopidogrel, it is crucial to monitor for signs of thrombotic thrombocytopenic purpura, bleeding during therapy, and changes in CBC with differential and platelet count. Thrombotic thrombocytopenic purpura is a rare but serious condition associated with Clopidogrel use, characterized by microangiopathic hemolytic anemia, thrombocytopenia, neurological symptoms, fever, and renal dysfunction. Monitoring for signs of thrombotic thrombocytopenic purpura is essential to detect this potentially life-threatening condition early. Monitoring for bleeding helps to assess the risk of hemorrhagic events, a known side effect of Clopidogrel. Additionally, regular monitoring of CBC with differential and platelet count is necessary to evaluate the drug's impact on blood cell counts and detect any abnormalities that may require intervention. Therefore, monitoring all these parameters is vital to ensure patient safety and appropriate management during Clopidogrel therapy.
5. A client with heart failure is receiving instructions about laxative use. The client should be advised to avoid which of the following laxatives?
- A. Sodium phosphate
- B. Psyllium
- C. Bisacodyl
- D. Polyethylene glycol
Correct answer: A
Rationale: Clients with heart failure often have sodium restrictions. Sodium phosphate can lead to fluid retention due to sodium absorption, which is harmful for individuals with heart failure. Therefore, it should be avoided in this population to prevent exacerbating fluid overload. Psyllium, Bisacodyl, and Polyethylene glycol are safer options for individuals with heart failure as they do not pose the risk of exacerbating fluid overload through sodium retention.
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