HESI LPN
CAT Exam Practice
1. A client has had several episodes of clear, watery diarrhea that started yesterday. What action should the nurse implement?
- A. Administer a prescribed PRN antiemetic
- B. Assess the client for the presence of hemorrhoids
- C. Check the client’s hemoglobin level
- D. Review the client’s current list of medications
Correct answer: D
Rationale: The correct action for the nurse to implement in a client experiencing clear, watery diarrhea is to review the client's current list of medications. Certain medications can cause diarrhea as a side effect, so identifying any potential culprits is essential. Administering an antiemetic (Choice A) is not appropriate for diarrhea, as antiemetics are used to control nausea and vomiting, not diarrhea. Assessing for hemorrhoids (Choice B) is not the priority when the client is experiencing watery diarrhea; addressing the root cause is crucial. Checking the client’s hemoglobin level (Choice C) is not the immediate action needed for this situation as it does not directly address the cause of diarrhea.
2. An older male resident of a long-term care facility has been scratching his legs for the past 2 days. Which intervention should the nurse implement?
- A. Explain the importance of bathing or showering daily
- B. Encourage fluid intake of at least 2,000 ml daily
- C. Keep the legs covered as much as possible
- D. Apply emollient to the affected area at least twice daily
Correct answer: D
Rationale: The correct intervention for the nurse to implement in this scenario is to apply emollient to the affected area at least twice daily. This is because applying emollients helps address dry skin, which is a common cause of itching in older adults. Explaining the importance of bathing or showering daily (Choice A) may be helpful for general hygiene but may not specifically address the itching. Encouraging fluid intake (Choice B) and keeping the legs covered (Choice C) are not directly related to addressing the itching caused by dry skin.
3. An older male was recently admitted to the rehabilitation unit with unilateral neglect syndrome as a result of a cerebrovascular accident (CVA). Which action should the nurse include in the plan of care?
- A. Provide additional light in the room to promote sensory stimulation
- B. Teach the client to turn his head from side to side for visual scanning
- C. Place a clock and calendar in the room to improve orientation
- D. Use hand and arm gestures to improve communication and comprehension
Correct answer: B
Rationale: Teaching the client to turn his head from side to side for visual scanning is essential in addressing unilateral neglect syndrome caused by a cerebrovascular accident. This action helps improve visual awareness and assists the client in overcoming the neglect of one side of the body. Providing additional light for sensory stimulation (Choice A) may not directly address the issue of unilateral neglect. Placing a clock and calendar in the room (Choice C) may be helpful for orientation but does not specifically target unilateral neglect. Using hand and arm gestures for communication (Choice D) may aid in communication but does not directly address the visual scanning deficits associated with unilateral neglect syndrome.
4. The healthcare provider prescribes potassium chloride 25 mEq in 500 ml D5W to infuse over 6 hours. The available 20 ml vial of potassium chloride is labeled '10 mEq/5 ml.' How many ml of potassium chloride should the nurse add to the IV fluid?
- A. 12.5
- B. 5
- C. 10
- D. 20
Correct answer: B
Rationale: To prepare 25 mEq of potassium chloride for the infusion, the nurse should add 5 ml of the 10 mEq/5 ml solution. This concentration provides the required amount of potassium chloride without exceeding the needed volume. Choice A would result in 12.5 mEq, which exceeds the prescribed amount. Choices C and D are incorrect as they do not align with the correct calculation based on the vial concentration.
5. A client is receiving lidocaine IV at 3 mg/minute. The pharmacy dispenses a 500 ml IV solution of normal saline (NS) with 2 grams of lidocaine. The nurse should regulate the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: D
Rationale: The infusion rate is calculated based on the concentration of lidocaine and the prescribed rate of infusion. First, convert lidocaine's weight to milligrams (2 grams = 2000 mg). Then, use the formula: (Total volume in ml * dose in mg) / 60 minutes. For this case, (500 ml * 2000 mg) / 60 minutes = 45 ml/hour. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not reflect the accurate calculation based on the provided concentration and infusion rate.
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