ATI LPN
Pharmacology for LPN
1. The healthcare provider is monitoring a client with chronic stable angina. Which symptom would indicate that the client's condition is worsening?
- A. Increased shortness of breath with exertion
- B. Improved tolerance to activity
- C. Decreased frequency of chest pain
- D. Stable blood pressure readings
Correct answer: A
Rationale: Increased shortness of breath with exertion is a concerning symptom in a client with chronic stable angina as it may indicate inadequate oxygen supply to the heart muscle, suggesting a worsening condition. This could be a sign of reduced blood flow to the heart, leading to increased work for the heart during exertion, resulting in increased shortness of breath. Choice B, improved tolerance to activity, is incorrect as it would indicate a positive response to treatment. Choice C, decreased frequency of chest pain, is incorrect as it would also suggest an improvement in the client's condition. Choice D, stable blood pressure readings, are not indicative of a worsening condition in chronic stable angina.
2. The client has atrial fibrillation and is receiving warfarin (Coumadin) therapy. Which laboratory test should be monitored to evaluate the effectiveness of the warfarin therapy?
- A. Prothrombin time (PT) and international normalized ratio (INR)
- B. Activated partial thromboplastin time (aPTT)
- C. Complete blood count (CBC)
- D. Fibrinogen levels
Correct answer: A
Rationale: Monitoring the Prothrombin time (PT) and international normalized ratio (INR) is crucial for assessing the effectiveness of warfarin therapy. These tests help determine the clotting ability of the blood and ensure that the client is within the desired therapeutic range to prevent clotting events or bleeding complications. Activated partial thromboplastin time (aPTT) (Choice B) is more commonly used to monitor heparin therapy, not warfarin. Complete blood count (CBC) (Choice C) and fibrinogen levels (Choice D) do not directly assess the effectiveness of warfarin therapy in the same way that PT and INR do.
3. 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.
4. The nurse is caring for a client with hypertension who is prescribed enalapril (Vasotec). The nurse should monitor the client for which potential adverse effect?
- A. Hypertension
- B. Hypotension
- C. Tachycardia
- D. Hyperglycemia
Correct answer: B
Rationale: The correct answer is B: Hypotension. Enalapril is an ACE inhibitor that works by dilating blood vessels and reducing blood pressure. Therefore, a potential adverse effect of enalapril is hypotension, not hypertension (choice A), tachycardia (choice C), or hyperglycemia (choice D). Monitoring for hypotension is crucial to prevent complications.
5. An ambulatory clinic nurse is interviewing a client who is complaining of flu-like symptoms. The client suddenly develops chest pain. Which question best assists the nurse in discriminating pain caused by a non-cardiac problem?
- A. Can you describe the pain to me?
- B. Have you ever experienced this pain before?
- C. Does the pain get worse when you breathe in?
- D. Can you rate the pain on a scale of 1 to 10, with 10 being the worst?
Correct answer: C
Rationale: The correct answer is C. Pain that worsens with breathing in can indicate pleuritic chest pain, which is non-cardiac in nature. This specific question helps in differentiating non-cardiac causes from cardiac causes of chest pain, as cardiac pain typically does not worsen with breathing. Choices A, B, and D are less specific in discriminating between cardiac and non-cardiac chest pain.
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