HESI LPN
CAT Exam Practice
1. When educating a group of school-age children on reducing the risk of Lyme disease, which instruction should the camp nurse include?
- A. Wash hands frequently
- B. Avoid drinking lake water
- C. Wear long sleeves and pants
- D. Do not share personal products
Correct answer: C
Rationale: The correct instruction to reduce the risk of Lyme disease is to wear long sleeves and pants. This helps prevent tick bites, which are the primary mode of transmission for Lyme disease. Wearing protective clothing reduces the skin's exposure to ticks, decreasing the chances of getting bitten. Washing hands frequently (Choice A) is important for general hygiene but not specifically for preventing Lyme disease. Avoiding drinking lake water (Choice B) is unrelated to the prevention of Lyme disease. Not sharing personal products (Choice D) is important for preventing the spread of infections but does not directly reduce the risk of Lyme disease.
2. When preparing the client for a thoracentesis, which action is essential for the nurse to take?
- A. Encourage the client to cough during the procedure
- B. Ask the client to void prior to the procedure
- C. Have the client lie in the prone position
- D. Determine if chest x-rays have been completed
Correct answer: B
Rationale: The essential action for the nurse to take when preparing a client for a thoracentesis is to ask the client to void prior to the procedure. This step is crucial as it helps prevent discomfort and reduces the risk of accidental injury. Encouraging the client to cough during the procedure (Choice A) is inappropriate as it can affect the accuracy of the thoracentesis. Having the client lie in the prone position (Choice C) is incorrect; the procedure is typically performed with the client sitting upright or slightly leaning forward. While determining if chest x-rays have been completed (Choice D) is important, ensuring the client has emptied their bladder is more critical for their comfort and safety during the procedure.
3. Which client is at the greatest risk for developing delirium?
- A. An adult client who cannot sleep due to constant pain
- B. An older client who attempted suicide 1 month ago
- C. A young adult who takes antipsychotic medications twice a day
- D. A middle-aged woman who uses a tank for supplemental oxygen
Correct answer: B
Rationale: The correct answer is B because older adults are at higher risk for delirium, especially following a recent suicide attempt, which can be a significant stressor. Choice A is less likely to develop delirium solely due to difficulty sleeping; delirium is more complex and multifactorial. Choice C, a young adult taking antipsychotic medications, may be at risk for other conditions but not necessarily delirium. Choice D, a middle-aged woman using supplemental oxygen, is not directly linked to an increased risk of delirium compared to the older client who recently attempted suicide.
4. When caring for a client with Cushing syndrome, which serum laboratory value is most important for the nurse to monitor?
- A. Lactate
- B. Glucose
- C. Hemoglobin
- D. Creatinine
Correct answer: B
Rationale: When caring for a client with Cushing syndrome, monitoring glucose levels is crucial as Cushing syndrome often leads to hyperglycemia. Elevated glucose levels are a common manifestation of Cushing syndrome due to increased cortisol levels. Monitoring glucose helps in assessing and managing the client's condition effectively. Lactate levels are not typically affected by Cushing syndrome. Hemoglobin and creatinine levels are important for other conditions like anemia and kidney function, but they are not the priority in Cushing syndrome.
5. A client with intestinal obstructions has a nasogastric tube to low intermittent suction and is receiving an IV of lactated Ringer’s at 100 ml/H. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 900 mL in the last 24 hours
- B. Serum potassium level of 3.1 mEq/L or mmol/L (SI)
- C. Increased blood urea nitrogen (BUN)
- D. 24-hour intake at the current infusion rate
Correct answer: B
Rationale: The most crucial finding to report to the healthcare provider in this scenario is a serum potassium level of 3.1 mEq/L. Hypokalemia can lead to serious complications, including cardiac issues. Gastric output, increased BUN, and monitoring the 24-hour intake are essential but do not pose an immediate risk as hypokalemia does in this situation.
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