ATI LPN
LPN Pharmacology Assessment A
1. The client has angina pectoris and is prescribed nitroglycerin patches. What instruction should the nurse provide to the client?
- A. Apply the patch to the chest and leave it in place for 24 hours
- B. Apply the patch to a different site each time to prevent skin irritation
- C. Remove the patch before going to bed to prevent tolerance
- D. Cut the patch in half if experiencing headaches
Correct answer: B
Rationale: The correct instruction for the nurse to provide to the client is to apply the nitroglycerin patch to a different site each time to prevent skin irritation. Rotating the application site is crucial to prevent skin irritation and ensure consistent absorption of the medication. Applying the patch to the same site can lead to skin irritation and decreased effectiveness. Removing the patch before going to bed is not necessary, as the patch can typically be worn for a specific duration. Cutting the patch in half if experiencing headaches is not recommended and can alter the dose of the medication.
2. A client is admitted to the emergency department with a suspected myocardial infarction (MI). The nurse should prepare the client for which immediate diagnostic test?
- A. Chest x-ray
- B. Electrocardiogram (ECG)
- C. Echocardiogram
- D. Coronary angiography
Correct answer: B
Rationale: An Electrocardiogram (ECG) is the most immediate and essential test to diagnose a myocardial infarction (MI) and assess the extent of heart damage. An ECG can quickly identify changes in the heart's electrical activity, allowing prompt initiation of appropriate interventions. A chest x-ray (Choice A) may show other conditions affecting the heart, but it is not the immediate test of choice for diagnosing an MI. An echocardiogram (Choice C) and coronary angiography (Choice D) are valuable in further assessing cardiac function and anatomy post-MI but are not the first-line diagnostic tests due to their time-consuming nature compared to an ECG.
3. A client is receiving heparin therapy. Which of the following laboratory tests should be monitored to evaluate the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Complete blood count (CBC)
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the most appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works on the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps assess its anticoagulant effect. Therapeutic levels of aPTT for clients on heparin therapy are typically 1.5 to 2.5 times the control value. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, which acts on the extrinsic pathway of the coagulation cascade. Complete blood count (CBC) is not specific for monitoring the effectiveness of heparin therapy.
4. After a client with a history of myocardial infarction (MI) is prescribed aspirin, which instruction should the nurse include in the discharge teaching?
- A. Take the aspirin with food to prevent gastrointestinal upset
- B. Discontinue the aspirin if you experience ringing in your ears
- C. Take the aspirin at bedtime to minimize side effects
- D. Avoid taking aspirin if you are also taking other NSAIDs
Correct answer: A
Rationale: The correct instruction is to take aspirin with food to prevent gastrointestinal upset. Aspirin can irritate the stomach lining, leading to potential gastrointestinal issues. Taking it with food helps reduce this risk by providing a protective layer in the stomach. This is a common recommendation to minimize the risk of gastrointestinal side effects when taking aspirin. Choices B, C, and D are incorrect. Choice B is not a typical reason to discontinue aspirin, as ringing in the ears is not a common side effect of aspirin. Choice C does not have a direct correlation to minimizing side effects of aspirin. Choice D is inaccurate because while caution should be exercised when taking aspirin with other NSAIDs due to the increased risk of bleeding, it does not mean aspirin should be entirely avoided if other NSAIDs are being taken.
5. 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.
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