ATI RN
ATI Pharmacology Proctored Exam 2023
1. A healthcare provider is preparing to administer a transfusion of a unit of packed red blood cells (PRBCs) for a client who has severe anemia. Which of the following interventions will prevent an acute hemolytic reaction?
- A. Ensure that the client has a patent IV line before obtaining the blood product from the refrigerator.
- B. Obtain help from another healthcare provider to confirm the correct client and blood product.
- C. Take a complete set of vital signs before beginning the transfusion and periodically during the transfusion.
- D. Stay with the client for the first 15 to 30 minutes of the transfusion.
Correct answer: B
Rationale: The correct answer is to obtain help from another healthcare provider to confirm the correct client and blood product. This action is crucial in preventing an acute hemolytic reaction, which is caused by ABO or Rh incompatibility. Verifying the correct client and blood product before the transfusion ensures that there are no errors in identification, reducing the risk of a potentially life-threatening reaction. Choices A, C, and D are important aspects of transfusion safety but are not directly related to preventing acute hemolytic reactions. Ensuring a patent IV line, monitoring vital signs, and staying with the client are all essential during transfusion but do not specifically address the risk of ABO or Rh incompatibility reactions.
2. A client is receiving treatment with vincristine. Which of the following findings should the nurse monitor?
- A. Hyperkalemia
- B. Neurotoxicity
- C. Neutropenia
- D. Bradycardia
Correct answer: B
Rationale: The correct answer is B: Neurotoxicity. Vincristine is known to cause neurotoxicity as an adverse effect due to its impact on the nervous system. Monitoring for neurotoxicity is crucial to detect any signs early. Choices A, C, and D are incorrect. Hyperkalemia is not a typical finding associated with vincristine. Neutropenia is a common side effect of chemotherapy but is not directly related to vincristine. Bradycardia is not a common adverse effect of vincristine.
3. A healthcare professional is administering a Dopamine infusion at a low dose to a client with severe heart failure. Which of the following findings is an expected effect of this medication?
- A. Lowered heart rate
- B. Increased myocardial contractility
- C. Decreased conduction through the AV node
- D. Vasoconstriction of renal blood vessels
Correct answer: B
Rationale: Dopamine, when administered at a low dose, is expected to increase myocardial contractility by stimulating beta1 receptors. This positive inotropic effect leads to an increase in cardiac output. Therefore, the correct answer is increased myocardial contractility, as it is a desired effect of administering dopamine to a client with severe heart failure.
4. A client is prescribed Clopidogrel. Which of the following laboratory values should the nurse monitor to assess for potential adverse effects?
- A. White blood cell count
- B. Platelet count
- C. Hemoglobin
- D. Blood glucose
Correct answer: B
Rationale: Clopidogrel is an antiplatelet medication that works by inhibiting platelet aggregation. Therefore, the nurse should monitor the client's platelet count to assess for potential bleeding complications. Changes in platelet count can indicate the effectiveness of Clopidogrel therapy and help prevent adverse effects related to clotting or bleeding. Monitoring white blood cell count, hemoglobin, or blood glucose levels is not directly related to the action or side effects of Clopidogrel.
5. A healthcare provider in a clinic is monitoring serum electrolytes for four older adult clients who take digoxin. Which of the following electrolyte values increases a client's risk for Digoxin toxicity?
- A. Calcium 9.2 mg/dL
- B. Calcium 10.3 mg/dL
- C. Potassium 3.4 mEq/L
- D. Potassium 4.8 mEq/L
Correct answer: C
Rationale: Potassium 3.4 mEq/L is below the expected reference range, which increases the risk for digoxin toxicity. Low potassium levels can lead to fatal dysrhythmias, particularly in older clients taking Digoxin. Hypokalemia potentiates the effects of Digoxin, making the heart more sensitive to its toxic effects. Monitoring and correcting electrolyte imbalances, especially low potassium levels, are crucial to prevent adverse effects of digoxin therapy. Calcium levels do not directly influence digoxin toxicity, so choices A and B are incorrect. High potassium levels, as in choice D, are less likely to increase the risk of digoxin toxicity compared to low potassium levels.
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