ATI LPN
LPN Pharmacology Practice Questions
1. The client with atrial fibrillation is receiving warfarin (Coumadin). Which laboratory test should be monitored to determine the effectiveness of the therapy?
- A. Prothrombin time (PT) and international normalized ratio (INR)
- B. Activated partial thromboplastin time (aPTT)
- C. Complete blood count (CBC)
- D. Fibrinogen level
Correct answer: A
Rationale: Monitoring Prothrombin time (PT) and international normalized ratio (INR) is crucial when a client is on warfarin therapy. These tests assess the clotting ability of the blood and help determine the appropriate dosage of warfarin to prevent complications such as bleeding or clotting events. PT and INR values within the therapeutic range indicate the effectiveness of warfarin in managing atrial fibrillation. Choice B, activated partial thromboplastin time (aPTT), is not typically used to monitor warfarin therapy; it is more commonly used to assess the effectiveness of heparin therapy. Choice C, complete blood count (CBC), does not directly assess the anticoagulant effect of warfarin. Choice D, fibrinogen level, is not a primary test for monitoring warfarin therapy; it is more relevant in assessing conditions like disseminated intravascular coagulation.
2. While preparing a client for a cardiac catheterization, the client expresses a preference to speak with their doctor rather than the nurse. Which response by the nurse should be therapeutic?
- A. Your doctor expects me to prepare you for this procedure.
- B. That's fine, if that's what you want. I'll call your health care provider.
- C. So you're saying that you want to talk to your health care provider?
- D. I'm concerned with the way you've dismissed me. I know what I am doing.
Correct answer: C
Rationale: The therapeutic response by the nurse in this situation involves reflecting the client's feelings back to them, which demonstrates active listening and empathy. By restating the client's preference to talk to their doctor, the nurse acknowledges and validates the client's feelings, thereby fostering a positive therapeutic relationship and promoting open communication. Choices A and B do not acknowledge the client's preference and may come off as dismissive. Choice D is confrontational and defensive, which can lead to a breakdown in communication and trust between the nurse and the client.
3. A client who has a new prescription for warfarin is being educated by a healthcare professional about monitoring for adverse effects. Which of the following statements by the client indicates an understanding of the teaching?
- A. 'I should use a soft toothbrush to brush my teeth.'
- B. 'I will double my dose if I miss one.'
- C. 'I should increase my intake of leafy green vegetables.'
- D. 'I will contact my doctor if I notice any unusual bleeding or bruising.'
Correct answer: D
Rationale: The correct answer is D: 'I will contact my doctor if I notice any unusual bleeding or bruising.' This statement indicates a good understanding of the teaching regarding warfarin. Warfarin is an anticoagulant medication that increases the risk of bleeding. Contacting the doctor if unusual bleeding or bruising is noticed is essential as it can help prevent serious complications. Choices A, B, and C are incorrect. Using a soft toothbrush is generally recommended for oral hygiene but is not directly related to monitoring for adverse effects of warfarin. Doubling the dose of warfarin if a dose is missed is dangerous and can increase the risk of bleeding. Increasing the intake of leafy green vegetables can interfere with warfarin's effectiveness as they contain vitamin K, which antagonizes warfarin's anticoagulant effects.
4. The nurse is assisting with the care of a client diagnosed with heart failure. Which finding should the nurse report to the healthcare provider immediately?
- A. Weight gain of 2 pounds in 2 days
- B. Increased urination at night
- C. Mild shortness of breath on exertion
- D. Decreased appetite and fatigue
Correct answer: A
Rationale: A weight gain of 2 pounds in 2 days is concerning in a client with heart failure as it can indicate fluid retention and worsening of the condition. This finding requires immediate medical attention to prevent further complications. Increased urination at night (choice B) may be due to various reasons like diuretic use and is not an immediate concern. Mild shortness of breath on exertion (choice C) is expected in clients with heart failure and may not require immediate reporting. Decreased appetite and fatigue (choice D) are common symptoms in heart failure but are not as urgent as sudden weight gain.
5. A client has a new prescription for verapamil. Which of the following beverages should the client avoid while taking this medication?
- A. Orange juice
- B. Coffee
- C. Milk
- D. Grapefruit juice
Correct answer: D
Rationale: Grapefruit juice should be avoided while taking verapamil as it can increase drug levels and the risk of side effects. The interaction between grapefruit juice and verapamil can lead to higher concentrations of the medication in the bloodstream, potentially causing adverse effects. Orange juice, coffee, and milk do not have significant interactions with verapamil. Therefore, it is crucial for the client to avoid grapefruit juice to ensure the safe and effective use of verapamil.
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