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 with Graves' disease is being taught about her prescribed medications. Which of the following statements by the client indicates an understanding of the use of Propranolol in the treatment of Graves' disease?
- A. Propranolol helps increase blood flow to my thyroid gland.
- B. Propranolol is used to prevent excess glucose in my blood.
- C. Propranolol will decrease my tremors and fast heart rate.
- D. Propranolol promotes a decrease in thyroid hormone in my body.
Correct answer: C
Rationale: The correct answer is C. Propranolol is a beta-adrenergic antagonist that helps decrease heart rate and control tremors in individuals with Graves' disease. It does not increase blood flow to the thyroid gland (choice A), prevent excess glucose in the blood (choice B), or directly decrease thyroid hormone levels in the body (choice D). Propranolol's primary role in Graves' disease is to alleviate symptoms like tremors and fast heart rate by blocking the effects of excessive thyroid hormone, rather than reducing the actual levels of thyroid hormone in the body.
3. In caring for a client who received IV Verapamil to treat supraventricular tachycardia (SVT) and presents with a pulse rate of 98/min and blood pressure of 74/44 mm Hg, the nurse should anticipate a prescription for which of the following IV medications?
- A. Calcium gluconate
- B. Sodium bicarbonate
- C. Potassium chloride
- D. Magnesium sulfate
Correct answer: A
Rationale: In this scenario, the client is experiencing severe hypotension due to Verapamil administration. The appropriate medication to counteract the vasodilation caused by Verapamil and reverse severe hypotension is Calcium gluconate, which should be administered slowly IV. Therefore, the correct choice is Calcium gluconate (Choice A). Sodium bicarbonate (Choice B) is not indicated for hypotension related to Verapamil use. Potassium chloride (Choice C) and Magnesium sulfate (Choice D) are not the appropriate medications to address the hypotension in this situation.
4. A healthcare provider is assessing a client who takes Lithium Carbonate for the treatment of Bipolar disorder. The provider should recognize which of the following findings as a possible indication of toxicity to this medication?
- A. Severe hypertension
- B. Coarse tremors
- C. Constipation
- D. Muscle spasm
Correct answer: B
Rationale: Coarse tremors are a common sign of Lithium toxicity. It is important for healthcare providers to monitor for this symptom as it indicates a potential overdose of the medication. Severe hypertension, constipation, and muscle spasms are not typically associated with Lithium toxicity. Severe hypertension is not a common sign of Lithium toxicity but rather a symptom of hypertensive crisis. Constipation is not a typical sign of Lithium toxicity but could be seen in other conditions. Muscle spasms are not specific to Lithium toxicity but can occur due to various reasons.
5. A nurse is teaching a client who has a new prescription for Prednisone. Which of the following instructions should the nurse include?
- A. Increase your intake of vitamin
- B. Take this medication on an empty stomach.
- C. Avoid drinking grapefruit juice.
- D. Take this medication every other day.
Correct answer: A
Rationale: Prednisone can lead to bone loss, so clients should increase their intake of vitamin D and calcium to help maintain bone health.
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