ATI LPN
LPN Pharmacology Assessment A
1. The client is receiving anticoagulant therapy for atrial fibrillation. 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. Platelet count
- D. Erythrocyte sedimentation rate (ESR)
Correct answer: A
Rationale: Prothrombin time (PT) and international normalized ratio (INR) are essential laboratory tests to monitor the effectiveness of anticoagulant therapy in clients with atrial fibrillation. These tests help ensure that the client is within the therapeutic range and are commonly used to assess the clotting ability of the blood. Monitoring PT and INR levels allows healthcare providers to adjust anticoagulant dosages as needed to prevent complications such as bleeding or thrombosis. Activated partial thromboplastin time (aPTT) is more commonly used to monitor heparin therapy, not anticoagulant therapy for atrial fibrillation. Platelet count assesses the number of platelets in the blood and is not a direct indicator of anticoagulant therapy effectiveness. Erythrocyte sedimentation rate (ESR) is a nonspecific marker of inflammation and is not used to monitor anticoagulant therapy.
2. 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.
3. The healthcare provider is preparing to administer a calcium channel blocker to a client with hypertension. What parameter should be checked before administering the medication?
- A. Apical pulse
- B. Serum calcium level
- C. Blood pressure
- D. Respiratory rate
Correct answer: C
Rationale: Before administering a calcium channel blocker to a client with hypertension, the healthcare provider should check the client's blood pressure. Calcium channel blockers are used to lower blood pressure, making it essential to assess the current blood pressure to ensure it is within the appropriate range for administration. Checking the apical pulse (choice A) is not the priority before administering a calcium channel blocker, as the focus should be on blood pressure. Serum calcium level (choice B) is not directly related to the administration of calcium channel blockers for hypertension. Respiratory rate (choice D) is not the primary parameter to check before administering a calcium channel blocker in this scenario.
4. A client has been prescribed ciprofloxacin and is receiving discharge teaching. Which of the following instructions should be included by the healthcare provider?
- A. Take the medication with milk.
- B. Avoid exposure to sunlight.
- C. Take the medication at bedtime.
- D. Increase your intake of vitamin K.
Correct answer: B
Rationale: The correct answer is to instruct the client to avoid exposure to sunlight. Ciprofloxacin can increase the risk of photosensitivity, making it important to protect the skin from sunlight to prevent skin reactions. This precaution can help prevent skin damage and discomfort in individuals taking ciprofloxacin. Choices A, C, and D are incorrect. Taking ciprofloxacin with milk is not recommended as it may reduce the absorption of the medication. There is no specific instruction to take ciprofloxacin at bedtime. Increasing vitamin K intake is not directly related to ciprofloxacin therapy.
5. The healthcare provider is evaluating the effects of care for a client with deep vein thrombosis (DVT). Which limb observations should the provider note as indicating the least success in meeting the outcome criteria for this problem?
- A. Pedal edema that is 3+
- B. Slight residual calf tenderness
- C. Skin warm, equal temperature in both legs
- D. Calf girth 1/8 inch larger than the unaffected limb
Correct answer: A
Rationale: Significant pedal edema, indicated by 3+, suggests ongoing or worsening venous insufficiency. This can be a sign that the care provided has not been effective in managing the deep vein thrombosis (DVT) and the associated complications. Monitoring and addressing pedal edema is crucial in the evaluation of DVT treatment outcomes and overall patient care. Choices B, C, and D are not indicative of the least success in meeting the outcome criteria for DVT. Slight residual calf tenderness, skin warmth, and a slightly larger calf girth do not necessarily point towards treatment failure or lack of improvement in DVT management.
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