HESI LPN
HESI Fundamental Practice Exam
1. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the LPN/LVN set the client's intravenous infusion pump?
- A. 13 ml/hour
- B. 63 ml/hour
- C. 80 ml/hour
- D. 125 ml/hour
Correct answer: B
Rationale: To calculate the correct rate of infusion, divide the total volume by the total time: 250 ml / 4 hours = 62.5 ml/hour, which is rounded up to 63 ml/hour. This rate ensures the proper administration of the KCl over the 4-hour period. Choice A (13 ml/hour) is incorrect as it does not match the calculated rate. Choices C (80 ml/hour) and D (125 ml/hour) are also incorrect as they do not correspond to the calculated rate needed for the specified time frame.
2. A client requires gastric decompression, and a nurse is inserting an NG tube. Which action should the nurse take to verify proper placement of the tube?
- A. Assess the client for a gag reflex
- B. Measure the pH of the gastric aspirate
- C. Place the end of the NG tube in water to observe for bubbling
- D. Auscultate 2.5 cm (1 in) above the umbilicus while injecting 15 mL of sterile water
Correct answer: B
Rationale: Measuring the pH of the gastric aspirate is the most reliable method to confirm proper placement of an NG tube. Gastric fluid has an acidic pH, typically ranging from 1 to 5. Assessing the client for a gag reflex (choice A) is important for airway protection but does not confirm tube placement. Placing the NG tube in water to observe for bubbling (choice C) is incorrect and not a reliable method for verifying placement. Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.
3. A nurse manager is reviewing with nurses on the unit the care of a client who has had a seizure. Which of the following statements by a nurse requires further instruction?
- A. “I will place the client on their side.”
- B. “I will go to the nurses’ station for assistance.”
- C. “I will note the time that the seizure begins.”
- D. “I will prepare to insert an airway.”
Correct answer: B
Rationale: The correct answer is B. Going to the nurses’ station for assistance during a seizure is inappropriate as immediate care is necessary. Placing the client on their side helps maintain an open airway and prevents aspiration. Noting the time the seizure begins is crucial for monitoring and documentation. Preparing to insert an airway may be necessary if the client's airway becomes compromised. Therefore, the nurse's statement about going to the nurses' station for assistance is the only incorrect response as it delays essential care.
4. The healthcare provider is preparing a client with deep vein thrombosis (DVT) for a Venous Doppler evaluation. Which of the following would be necessary for preparing the client for this test?
- A. Client should be NPO prior to the test
- B. Client should receive a sedative medication before the test
- C. Discontinue anticoagulant therapy before the test
- D. No special preparation is necessary
Correct answer: D
Rationale: No special preparation is required for a Venous Doppler evaluation. Option A is incorrect because there is no need for the client to be NPO (nothing by mouth) before this test. Option B is incorrect as sedative medication is not typically administered for a Venous Doppler evaluation. Option C is incorrect as discontinuing anticoagulant therapy before the test may not be safe for a client with DVT, as it could increase the risk of developing a blood clot. Therefore, the correct answer is D.
5. At the time of the first dressing change, the client refuses to look at her mastectomy incision. The LPN tells the client that the incision is healing well, but the client refuses to talk about it. What would be an appropriate response to this client's silence?
- A. It is normal to feel angry and depressed, but the sooner you deal with this surgery, the better you will feel.
- B. Looking at your incision can be frightening, but facing this fear is a necessary part of your recovery.
- C. It is OK if you don't want to talk about your surgery. I will be available when you are ready.
- D. I will ask a woman who has had a mastectomy to come by and share her experiences with you.
Correct answer: C
Rationale: In this situation, it's essential to acknowledge and respect the client's feelings and choices. Choice C is the most appropriate response as it validates the client's decision not to discuss the surgery while offering support and understanding. Giving the client space and letting them know you will be available when they are ready shows empathy and fosters trust. Choices A and B do not respect the client's autonomy and may come across as dismissive or pressuring. Choice D assumes the client needs advice from someone who has had a similar experience without considering the client's current emotional state and preferences.
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