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 nurse is planning care for a client who has hypernatremia. Which of the following actions should the nurse include in the plan of care?
- A. Infuse hypotonic IV fluids.
- B. Implement a fluid restriction.
- C. Increase sodium intake.
- D. Administer sodium polystyrene sulfonate.
Correct answer: A
Rationale: The correct answer is to infuse hypotonic IV fluids. In hypernatremia, there is an elevated sodium concentration in the blood, and diluting it with hypotonic fluids helps to lower the sodium levels. Implementing a fluid restriction or increasing sodium intake would worsen hypernatremia by further concentrating sodium in the body. Administering sodium polystyrene sulfonate is used for treating hyperkalemia, not hypernatremia.
3. A nurse is preparing to administer enoxaparin subcutaneously. Which of the following actions should the nurse take?
- A. Administer the medication with the needle at a 45-degree angle.
- B. Administer the medication with the needle at a 90-degree angle.
- C. Administer the medication with the needle at a 30-degree angle.
- D. Administer the medication with the needle at a 15-degree angle.
Correct answer: B
Rationale: Enoxaparin should be administered with the needle at a 90-degree angle to ensure proper subcutaneous delivery. Choice B is correct as it aligns with the recommended angle for subcutaneous injections. Administering enoxaparin at a 45-degree angle (Choice A), 30-degree angle (Choice C), or 15-degree angle (Choice D) would not be appropriate and may lead to improper administration or absorption of the medication.
4. A healthcare professional is preparing to insert an NG tube for a client admitted with bowel obstruction. Which of the following should the healthcare professional do first?
- A. Explain the procedure to the client
- B. Measure the length of the NG tube
- C. Lubricate the NG tube
- D. Place the client in a high Fowler’s position
Correct answer: A
Rationale: Explaining the procedure to the client is the initial and most important step that the healthcare professional should take before inserting an NG tube. By explaining the procedure, the healthcare professional ensures the client's understanding, obtains informed consent, and fosters cooperation. Measuring the length of the NG tube, lubricating the tube, and positioning the client in a high Fowler's position are essential steps in the NG tube insertion process but should come after the client has been informed and consented to the procedure.
5. A healthcare professional is preparing information for a change-of-shift report. Which of the following information should the healthcare professional include in the report?
- A. Input and output measurements for the shift
- B. Blood pressure readings from the previous day
- C. Bone scan scheduled for today
- D. Medication regimen from the medication administration record
Correct answer: D
Rationale: During a change-of-shift report, healthcare professionals should include the medication regimen from the medication administration record. This information ensures continuity of care and helps incoming staff understand the patient's medication needs and schedule. While input and output measurements, blood pressure readings, and scheduled procedures like a bone scan are important aspects of patient care, they may not be immediately relevant for the incoming shift. Focusing on medication details helps prevent errors and ensures the patient receives the correct medications at the right times.
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