ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for prednisone. Which of the following statements should the nurse include in teaching the client?
- A. You may experience weight gain.
- B. Increase your intake of vitamin K.
- C. Expect increased urinary output.
- D. You may have dark, tarry stools.
Correct answer: A
Rationale: The correct answer is A. Weight gain is a common side effect of prednisone. The nurse should educate the client about the possibility of weight gain and the need to monitor it closely during treatment with prednisone. Choice B is incorrect because increasing vitamin K intake is not specifically related to prednisone therapy. Choice C is incorrect as prednisone is more likely to cause fluid retention rather than increased urinary output. Choice D is incorrect as dark, tarry stools are not a common side effect of prednisone.
2. A client has a new prescription for transdermal nitroglycerin patches. Which of the following instructions should be included for proper use?
- A. Apply the patch to the same site each day.
- B. Place the patch on an area of skin away from skin folds and joints.
- C. Keep the patch on 24 hours per day.
- D. Replace the patch every 72 hours.
Correct answer: B
Rationale: Placing the nitroglycerin patch on an area of skin away from skin folds and joints is crucial to ensure optimal absorption and effectiveness of the medication. Placing the patch on skin folds or joints can interfere with absorption, potentially reducing the patch's efficacy. Therefore, it is essential to follow this instruction to maximize the therapeutic benefits of the nitroglycerin patches. The other options are incorrect because applying the patch to the same site each day can lead to skin irritation, keeping the patch on 24 hours per day may not be necessary depending on the specific patch instructions, and replacing the patch every 72 hours is not the standard frequency for nitroglycerin patches.
3. The client with a history of heart failure is receiving digoxin (Lanoxin). Which electrolyte imbalance increases the risk of digoxin toxicity?
- A. Hypernatremia
- B. Hypercalcemia
- C. Hypokalemia
- D. Hypomagnesemia
Correct answer: C
Rationale: Hypokalemia increases the risk of digoxin toxicity as low potassium levels enhance the effects of digoxin on the heart, leading to toxicity and potential adverse effects. Hypernatremia (Choice A) is not directly associated with an increased risk of digoxin toxicity. Hypercalcemia (Choice B) does not increase the risk of digoxin toxicity. Hypomagnesemia (Choice D) can contribute to digoxin toxicity, but hypokalemia has a more significant impact on increasing the risk.
4. The healthcare professional is caring for a client who has just returned from a cardiac catheterization. The healthcare professional should prioritize which assessment?
- A. Monitoring the client's vital signs every 4 hours
- B. Assessing the puncture site for bleeding
- C. Encouraging the client to ambulate early to prevent complications
- D. Providing the client with fluids to flush out the contrast dye
Correct answer: B
Rationale: Assessing the puncture site for bleeding is a critical assessment after a cardiac catheterization procedure. This is essential to detect and address any potential complications promptly, such as hemorrhage or hematoma formation. Monitoring vital signs, encouraging early ambulation, and providing fluids to flush out contrast dye are important aspects of post-cardiac catheterization care, but assessing the puncture site for bleeding takes precedence due to the immediate risk of complications such as severe bleeding that require immediate intervention.
5. The nurse is assisting in the care of a client with a history of angina pectoris who is receiving nitroglycerin patches. Which instruction should the nurse reinforce with the client?
- A. Apply the patch to a different site each time.
- B. Remove the patch at night to prevent tolerance.
- C. Use more than one patch if chest pain occurs.
- D. Shower with caution while wearing the patch.
Correct answer: B
Rationale: Removing the nitroglycerin patch at night is crucial to prevent the development of tolerance. Tolerance can occur when the body becomes accustomed to a constant level of the medication, reducing its effectiveness. By removing the patch at night, the client experiences a drug-free period, which helps prevent tolerance and maintains the effectiveness of the nitroglycerin for angina relief. Choices A, C, and D are incorrect because applying the patch to a different site each time helps prevent skin irritation, using more than one patch is not recommended unless instructed by the healthcare provider, and showering with caution is important to prevent dislodging the patch, but it is not the most critical instruction to prevent tolerance development.
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