ATI RN
ATI Capstone Pharmacology Assessment 1
1. A nurse is caring for a client receiving patient-controlled analgesia (PCA). Which of the following interventions should the nurse take while caring for this client?
- A. Advise the client to use the pump sparingly to prevent addiction
- B. Encourage the client to use the PCA before dressing changes
- C. Encourage the client's family to administer PCA while the client is sleeping
- D. Increase the client's 4-hour limit as needed
Correct answer: B
Rationale: The correct answer is B because encouraging the client to use the PCA before dressing changes helps in managing pain proactively. Choice A is incorrect as PCA is a safe method of pain control when used appropriately, and the nurse should not suggest using it sparingly. Choice C is incorrect as only the client should operate the PCA to ensure they are in control of their pain management. Choice D is incorrect as changing the PCA limit without proper assessment and orders from the healthcare provider can lead to adverse effects.
2. A healthcare provider has just administered a wrong medication to a client. Which of the following actions should the provider take next?
- A. No action is needed
- B. Report error to the provider
- C. Complete an institutional incident report
- D. Inform the client that the wrong medication was given
Correct answer: B
Rationale: In the scenario where a wrong medication has been administered, it is crucial for the healthcare provider to report the error to the provider. This action is essential to ensure that the provider is informed promptly, corrective measures are taken, and the client's well-being is safeguarded. Choice A is incorrect as taking no action could lead to serious consequences and compromise patient safety. Choice C, while important, should come after reporting the error to the provider. Choice D is not the immediate priority as the provider should first focus on addressing the error internally.
3. A nurse is reviewing a client's medication regimen. Which of the following medications places the client at increased risk for digoxin toxicity?
- A. Calcium channel blockers
- B. Potassium-sparing diuretics
- C. Beta blockers
- D. Loop diuretics
Correct answer: D
Rationale: The correct answer is D, Loop diuretics. Loop diuretics can lead to hypokalemia, which increases the risk for digoxin toxicity. Loop diuretics cause potassium loss, and hypokalemia can potentiate the toxic effects of digoxin. Choices A, B, and C are incorrect because calcium channel blockers, potassium-sparing diuretics, and beta blockers do not directly increase the risk of digoxin toxicity.
4. A client with an artificial heart valve is prescribed warfarin therapy. Which of the following laboratory values should the nurse monitor to assess the therapeutic effect of warfarin?
- A. Hemoglobin (Hgb)
- B. Prothrombin time (PT)
- C. Bleeding time
- D. Activated partial thromboplastin time (aPTT)
Correct answer: B
Rationale: The correct answer is B: Prothrombin time (PT). Warfarin is an anticoagulant medication that works by inhibiting the clotting factors dependent on vitamin K, such as factors II, VII, IX, and X. The prothrombin time (PT) measures the extrinsic pathway and is used to monitor the therapeutic effects of warfarin therapy. Monitoring PT helps assess the time it takes for the blood to clot, ensuring that the anticoagulant effect is within the desired range. Choices A, C, and D are incorrect because hemoglobin (Hgb) measures the amount of hemoglobin in the blood, bleeding time assesses the time it takes for bleeding to stop, and activated partial thromboplastin time (aPTT) is used to monitor heparin therapy, not warfarin therapy.
5. A client has been prescribed vasopressin for the treatment of diabetes insipidus. What is the expected pharmacologic action of this medication?
- A. To stimulate the pancreas to secrete insulin
- B. To slow the absorption of glucose in the intestine
- C. To increase reabsorption of water in the renal tubules
- D. To increase blood pressure
Correct answer: C
Rationale: The correct answer is C: To increase reabsorption of water in the renal tubules. Vasopressin, also known as antidiuretic hormone (ADH), works by increasing the reabsorption of water in the renal tubules, which helps to concentrate urine and reduce excessive urination in diabetes insipidus. Choice A is incorrect as vasopressin does not stimulate the pancreas to secrete insulin. Choice B is incorrect as vasopressin does not affect the absorption of glucose in the intestine. Choice D is incorrect as vasopressin's primary action is not to increase blood pressure, although it can have some vasoconstrictive effects.
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