HESI LPN
HESI Practice Test for Fundamentals
1. The patient has been in bed for several days and needs to be ambulated. Which action will the nurse take first?
- A. Maintain a narrow base of support.
- B. Dangle the patient at the bedside.
- C. Encourage isometric exercises.
- D. Suggest a high-calcium diet.
Correct answer: B
Rationale: The correct action the nurse should take first when a patient needs to be mobilized after being in bed for several days is to dangle the patient at the bedside. Dangling at the bedside is the initial step to assess the patient's tolerance to sitting up and moving. It helps prevent orthostatic hypotension and allows the nurse to evaluate the patient's response to upright positioning before attempting further ambulation. Maintaining a narrow base of support (Choice A) is related to assisting with ambulation but is not the first step. Encouraging isometric exercises (Choice C) and suggesting a high-calcium diet (Choice D) are not immediate actions needed to initiate mobilization in this scenario.
2. When reviewing a client’s fluid and electrolyte status, what should the nurse report to the provider?
- A. Potassium 5.4
- B. Sodium 140
- C. Calcium 8.6
- D. Magnesium 2.0
Correct answer: A
Rationale: The correct answer is A: 'Potassium 5.4'. A potassium level of 5.4 is elevated (normal range is typically 3.5-5.0 mEq/L) and may indicate hyperkalemia, which can have serious cardiac implications. Elevated potassium levels can lead to life-threatening arrhythmias, so immediate reporting and intervention are necessary. Choice B, 'Sodium 140', falls within the normal range (135-145 mEq/L) and does not require immediate reporting. Choice C, 'Calcium 8.6', falls within the normal range (8.5-10.5 mg/dL) and is not an immediate concern. Choice D, 'Magnesium 2.0', is within the normal range (1.5-2.5 mEq/L) and does not need urgent reporting. Therefore, the nurse should prioritize reporting the elevated potassium level as it poses the most immediate risk.
3. The healthcare provider attaches a pulse oximeter to a client's fingers and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading?
- A. BP 142/88 mmHg
- B. 2+ edema of fingers and hands
- C. Radial pulse volume is +3
- D. Capillary refill time is 2 seconds
Correct answer: B
Rationale: Edema, indicated by 2+ edema of fingers and hands, can impair blood flow and peripheral perfusion, leading to reduced oxygen saturation readings on a pulse oximeter. High blood pressure (choice A) would not directly affect oxygen saturation readings. Radial pulse volume (choice C) and capillary refill time (choice D) are more related to assessing circulation rather than contributing significantly to oxygen saturation readings.
4. To ensure the safety of a client receiving a continuous intravenous normal saline infusion, how often should the LPN change the administration set?
- A. Every 4 to 8 hours
- B. Every 12 to 24 hours
- C. Every 24 to 48 hours
- D. Every 72 to 96 hours
Correct answer: D
Rationale: The correct answer is to change the administration set every 72 to 96 hours. This practice helps reduce the risk of infection by preventing the build-up of bacteria in the tubing. Changing the set too frequently (choices A, B, and C) may increase the chances of contamination and infection without providing additional benefits. Therefore, the LPN should follow the guideline of changing the administration set every 72 to 96 hours to maintain the client's safety during the continuous intravenous normal saline infusion.
5. The nurse is caring for a patient who has experienced a stroke causing total paralysis of the right side. To help maintain joint function and minimize the disability from contractures, passive range of motion (ROM) will be initiated. When should the nurse begin this therapy?
- A. After the acute phase of the disease has passed.
- B. As soon as the ability to move is lost.
- C. Once the patient enters the rehab unit.
- D. When the patient requests it.
Correct answer: B
Rationale: Passive ROM exercises should begin as soon as the patient loses the ability to move the extremity or joint. Initiating passive ROM early helps prevent contractures and maintain joint function. Choice A is incorrect because delaying passive ROM until after the acute phase may lead to irreversible contractures. Choice C is not the best option as waiting until the patient enters the rehab unit delays crucial preventive measures. Choice D is incorrect as passive ROM should not be based on patient requests but on clinical indications and best practices.
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