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. The debilitated patient is resisting attempts by the nurse to provide oral hygiene. Which action will the nurse take next?
- A. Insert an oral airway.
- B. Place the patient in a flat, supine position.
- C. Use undiluted hydrogen peroxide as a cleaner.
- D. Quickly proceed without talking to the patient.
Correct answer: A
Rationale: When a debilitated patient resists oral hygiene, the nurse should prioritize safety. Inserting an oral airway helps keep the mouth open, ensuring adequate access for oral care procedures while preventing any accidental biting or closure of the airway. Placing the patient in a flat, supine position may not address the resistance issue and can lead to aspiration risk. Using undiluted hydrogen peroxide is not recommended due to its potential harmful effects on oral tissues. Proceeding quickly without communication can escalate the situation and compromise patient-centered care.
3. A healthcare professional is caring for a group of clients. Which of the following measures should the professional take to prevent the spread of infection?
- A. Place a client with TB in a room with negative pressure airflow
- B. Use a disposable gown for contact precautions
- C. Place a client with MRSA in a private room
- D. Use a mask for clients with influenza
Correct answer: A
Rationale: Tuberculosis is an airborne infection, and placing a client with TB in a room with negative pressure airflow helps prevent the spread of the infection by containing the pathogens. This measure is crucial as it prevents the dissemination of TB droplet nuclei to other areas. Choice B, using a disposable gown for contact precautions, is important for preventing the transmission of infections spread by direct or indirect contact. Choice C, placing a client with MRSA in a private room, is essential to prevent the spread of MRSA through contact with others. Choice D, using a mask for clients with influenza, helps prevent the spread of influenza through respiratory droplets. However, negative pressure airflow is specifically required for airborne infections like TB, making it the most appropriate choice in this scenario.
4. A male client presents to the clinic stating that he has a high-stress job and is having difficulty falling asleep at night. The client reports having a constant headache and is seeking medication to help with sleep. Which intervention should the nurse implement?
- A. Determine the client's sleep and activity pattern
- B. Obtain a prescription for the client to take when stressed
- C. Refer the client for a sleep study and neurological follow-up
- D. Teach coping strategies to use when feeling stressed
Correct answer: A
Rationale: The correct intervention for the nurse to implement in this scenario is to determine the client's sleep and activity pattern. By assessing the client's patterns, the nurse can identify factors contributing to the sleep issues and tailor appropriate interventions. Choice B is incorrect because prescribing medication without a comprehensive assessment is not the initial step. Choice C is unnecessary at this stage as the client's symptoms are likely related to stress rather than a neurological disorder. Choice D, while important, should come after understanding the client's sleep patterns to provide holistic care. Therefore, option A is the best choice to address the client's sleep difficulties and headaches effectively.
5. 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.
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