ATI LPN
Pharmacology for LPN
1. The client with deep vein thrombosis (DVT) is receiving anticoagulant therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the therapy?
- 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 correct laboratory test to monitor the effectiveness of anticoagulant therapy, especially with heparin. A prolonged aPTT indicates effective anticoagulation, reducing the risk of further clot formation in the client with deep vein thrombosis (DVT). The other options, such as complete blood count (CBC), serum electrolytes, and liver function tests, do not directly assess the therapeutic effectiveness of anticoagulant therapy. Therefore, the correct answer is B.
2. What is the initial action the nurse should take for a client who had a myocardial infarction (MI) and is experiencing restlessness, agitation, and an increased respiratory rate?
- A. Administer oxygen.
- B. Administer morphine sulfate.
- C. Notify the healthcare provider.
- D. Take the client's blood pressure.
Correct answer: A
Rationale: Administering oxygen is the priority action for a client experiencing restlessness, agitation, and an increased respiratory rate after a myocardial infarction (MI). This intervention helps ensure adequate oxygenation, improve cardiac function, and reduce the workload on the heart. Oxygen therapy takes precedence over administering medications like morphine sulfate or notifying the healthcare provider as it addresses the immediate need for oxygenation. Checking the blood pressure is also important but not as urgent as ensuring proper oxygen supply.
3. The client admitted to the hospital with pulmonary edema is preparing for discharge. The client should be reminded of the importance of complying with which measure to prevent a recurrence?
- A. Weigh oneself every morning before breakfast.
- B. Sleep with the head elevated on multiple pillows.
- C. Adjust diuretic dose without healthcare provider guidance.
- D. Take additional digoxin (Lanoxin) as a preventive measure.
Correct answer: A
Rationale: Monitoring weight daily, especially in the morning before breakfast, is crucial in detecting fluid retention early and preventing pulmonary edema. Sudden weight gain can indicate fluid accumulation, prompting timely intervention to prevent complications. Choice A is the correct answer because daily weight monitoring is a key component in managing heart failure and preventing pulmonary edema recurrence. Choices B and D are not directly related to preventing fluid retention or pulmonary edema recurrence. Choice C is unsafe as adjusting diuretic doses without healthcare provider guidance can lead to electrolyte imbalances and worsening of the condition.
4. A client has a history of left-sided heart failure. The nurse should look for the presence of which finding to determine whether the problem is currently active?
- A. Presence of ascites
- B. Bilateral lung crackles
- C. Jugular vein distention
- D. Pedal edema bilaterally
Correct answer: B
Rationale: When assessing a client with a history of left-sided heart failure, the presence of bilateral lung crackles is a key finding to determine if the condition is currently active. Crackles in the lungs indicate fluid accumulation, a common sign of left-sided heart failure due to pulmonary congestion. Choices A, C, and D are incorrect because ascites, jugular vein distention, and pedal edema are more commonly associated with right-sided heart failure.
5. The nurse is informed during shift report that a client is experiencing occasional ventricular dysrhythmias. The nurse reviews the client's laboratory results, recalling that which electrolyte imbalance could be responsible for this development?
- A. Hypokalemia
- B. Hypernatremia
- C. Hypochloremia
- D. Hypercalcemia
Correct answer: A
Rationale: Hypokalemia, which is low potassium levels, can disrupt the normal electrical activity of the heart and lead to ventricular dysrhythmias. Potassium plays a crucial role in maintaining the heart's rhythm, and a deficiency can result in dangerous heart rhythm abnormalities. Hypernatremia (Choice B), which is high sodium levels, does not directly impact heart rhythm. Hypochloremia (Choice C), which is low chloride levels, is not typically associated with ventricular dysrhythmias. Hypercalcemia (Choice D), which is high calcium levels, is not a common cause of ventricular dysrhythmias.
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