ATI LPN
Pharmacology for LPN
1. Which laboratory test should be monitored to evaluate the effectiveness of anticoagulant therapy in a client with deep vein thrombosis (DVT)?
- A. Complete blood count (CBC)
- B. Activated partial thromboplastin time (aPTT)
- C. Serum electrolytes
- D. Liver function tests
Correct answer: B
Rationale: Activated partial thromboplastin time (aPTT) is the laboratory test monitored to evaluate the effectiveness of anticoagulant therapy, particularly with heparin. It measures the time it takes for blood to clot, and monitoring aPTT helps ensure the therapeutic range is maintained to prevent clot formation and excessive bleeding. Choices A, C, and D are incorrect because a complete blood count (CBC) assesses overall health, serum electrolytes evaluate the body's electrolyte balance, and liver function tests assess liver health, none of which directly evaluate the effectiveness of anticoagulant therapy for DVT.
2. The nurse is caring for a client with heart failure who is receiving digoxin (Lanoxin). Which sign of digoxin toxicity should the nurse monitor for?
- A. Hypertension
- B. Bradycardia
- C. Hyperglycemia
- D. Insomnia
Correct answer: B
Rationale: Corrected Rationale: Bradycardia is a common sign of digoxin toxicity. Digoxin can cause bradycardia due to its effects on the heart's electrical conduction system. Monitoring for a slow heart rate is crucial as it indicates potential toxicity. Hypertension, hyperglycemia, and insomnia are not typically associated with digoxin toxicity. Hypertension is more commonly seen in other conditions, hyperglycemia is not a typical sign of digoxin toxicity, and insomnia is not a recognized symptom of digoxin toxicity.
3. A client with a diagnosis of myocardial infarction has a new activity prescription allowing the client to have bathroom privileges. As the client stands and begins to walk, the client begins to complain of chest pain. The nurse should take which action?
- A. Assist the client to get back into bed.
- B. Report the chest pain episode to the healthcare provider.
- C. Tell the client to stand still and take the client's blood pressure.
- D. Give a nitroglycerin (Nitrostat) tablet and assist the client to the bathroom.
Correct answer: A
Rationale: In a client with myocardial infarction experiencing chest pain during activity, the priority action is to stop the activity immediately to reduce the heart's workload and oxygen demand. Assisting the client back to bed helps in reducing stress on the heart and can prevent worsening of the condition. Reporting the chest pain episode to the healthcare provider is important but should not delay taking immediate action to alleviate symptoms. Taking the client's blood pressure and administering nitroglycerin are secondary actions after ensuring the client's safety and comfort. Therefore, the correct action is to assist the client back into bed.
4. The client with Raynaud's phenomenon is being taught by the nurse about preventing episodes. Which instruction should the nurse reinforce?
- A. Wear gloves in cold weather.
- B. Avoid caffeine and chocolate.
- C. Increase intake of vitamin C.
- D. Use a heating pad for warmth.
Correct answer: A
Rationale: The correct answer is A: 'Wear gloves in cold weather.' Wearing gloves in cold weather is essential for preventing vasoconstriction and subsequent episodes of Raynaud's phenomenon. Cold temperatures can trigger vasospasms in individuals with Raynaud's, and wearing gloves helps maintain warmth and prevent the constriction of blood vessels in the extremities, reducing the likelihood of an episode. Choices B, C, and D are incorrect because while avoiding caffeine and chocolate, increasing vitamin C intake, and using a heating pad for warmth can be beneficial for overall health, they are not specifically targeted at preventing Raynaud's phenomenon episodes triggered by cold weather.
5. A client has a new prescription for sertraline. Which of the following statements by the client indicates an understanding of the teaching?
- A. I should take this medication at bedtime.
- B. I may experience sexual dysfunction.
- C. I should avoid drinking grapefruit juice.
- D. I may experience weight loss while taking this medication.
Correct answer: B
Rationale: The correct answer is B. Sexual dysfunction is a common side effect of sertraline. When the client mentions this potential side effect, it indicates an understanding of the teaching about the medication's effects. This response shows awareness of a significant adverse effect that the client should be informed about when starting sertraline. Choices A, C, and D are incorrect because taking sertraline at bedtime, avoiding grapefruit juice, or experiencing weight loss are not key teaching points associated with this medication.
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