ATI LPN
ATI PN Comprehensive Predictor 2023
1. How should a healthcare provider manage a patient with hyperkalemia?
- A. Administer insulin and glucose
- B. Restrict potassium intake
- C. Monitor ECG
- D. All of the above
Correct answer: D
Rationale: In managing hyperkalemia, it is essential to administer insulin and glucose to shift potassium into the cells, restrict potassium intake to prevent further elevation of serum levels, and monitor the ECG for signs of potassium-induced cardiac effects. Therefore, the correct answer is D, as all of the provided actions are important in the management of hyperkalemia. Choice A alone is not sufficient as it only addresses shifting potassium intracellularly without preventing further elevation. Choice B alone is not enough as it does not address the immediate need to lower serum potassium levels. Choice C alone is insufficient as it only monitors for cardiac effects without addressing potassium levels or shifting mechanisms.
2. A nurse is caring for an infant who has a prescription for continuous pulse oximetry. Which of the following is an appropriate action for the nurse to take?
- A. Place the infant under a radiant warmer
- B. Move the probe site every 3 hours
- C. Heat the skin one minute prior to placing the probe
- D. Place the sensor on the index finger
Correct answer: B
Rationale: The correct answer is to move the probe site every 3 hours. This action helps prevent skin breakdown and ensures more accurate monitoring of oxygen saturation. Placing the infant under a radiant warmer (choice A) is unnecessary and not related to pulse oximetry. Heating the skin before placing the probe (choice C) can lead to burns and is not recommended. Placing the sensor on the index finger (choice D) is not appropriate for continuous monitoring in infants.
3. A nurse is reviewing the laboratory results for a client who has Cushing's disease. The nurse should expect the client to have an increase in which of the following laboratory values?
- A. Serum glucose level.
- B. Serum calcium level.
- C. Lymphocyte count.
- D. Serum potassium level.
Correct answer: A
Rationale: The correct answer is A: Serum glucose level. In Cushing's disease, there is an excess production of cortisol, leading to hyperglycemia. This results in an increase in serum glucose levels. Choices B, C, and D are incorrect because Cushing's disease does not directly affect serum calcium levels, lymphocyte count, or serum potassium levels.
4. A nurse is providing teaching to a client who has cirrhosis and a new prescription for lactulose. The nurse should instruct the client that lactulose has which of the following therapeutic effects?
- A. Increases blood pressure
- B. Prevents esophageal bleeding
- C. Decreases heart rate
- D. Reduces ammonia levels
Correct answer: D
Rationale: The correct answer is D: Reduces ammonia levels. Lactulose is used to reduce blood ammonia levels in clients with hepatic encephalopathy. Options A, B, and C are incorrect because lactulose does not have the therapeutic effect of increasing blood pressure, preventing esophageal bleeding, or decreasing heart rate.
5. A client with liver cirrhosis is prescribed lactulose. What is the purpose of this medication?
- A. To lower blood sugar levels
- B. To reduce ammonia levels
- C. To treat liver inflammation
- D. To improve bile flow
Correct answer: B
Rationale: Lactulose is prescribed to reduce ammonia levels in clients with liver cirrhosis. Elevated ammonia levels can lead to hepatic encephalopathy, a serious complication of liver cirrhosis. Lactulose works by acidifying the colon, which in turn traps ammonia in the colon and helps its elimination from the body through stool, thereby reducing the risk of hepatic encephalopathy. Choice A is incorrect because lactulose does not lower blood sugar levels. Choice C is incorrect as lactulose is not used to treat liver inflammation. Choice D is incorrect as lactulose does not improve bile flow.
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