HESI LPN
HESI Fundamentals Exam
1. A nurse is preparing to administer methylprednisolone 10 mg by IV bolus. The amount available is methylprednisolone injection 40-mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Do not use a trailing zero.)
- A. 0.3 mL
- B. 0.25 mL
- C. 0.4 mL
- D. 0.5 mL
Correct answer: A
Rationale: To calculate the mL to administer, use the formula: Dose required (mg) ÷ Stock concentration (mg/mL) = Volume to administer (mL). In this case, 10 mg ÷ 40 mg/mL = 0.25 mL. However, when rounding to the nearest tenth, the answer should be 0.3 mL. Therefore, the nurse should administer 0.3 mL. Choice A is the correct answer. Choice B (0.25 mL) is the result obtained before rounding. Choice C (0.4 mL) and Choice D (0.5 mL) are incorrect calculations.
2. 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.
3. The nurse is teaching the parents of a child who has head lice (pediculosis capitis). Which information will the nurse include in the teaching session?
- A. Treatment involves using regular shampoo.
- B. Products containing lindane are not recommended.
- C. Head lice may spread to furniture and other people.
- D. Manual removal is essential in treatment.
Correct answer: C
Rationale: The correct answer is C. Head lice are highly contagious and can spread to furniture and other people if not treated promptly. Informing the parents about the potential spread of head lice emphasizes the importance of thorough treatment and prevention measures. Choice A is incorrect as regular shampoo is not typically effective in treating head lice. Choice B is incorrect as products containing lindane are not recommended due to safety concerns. Choice D is incorrect as manual removal, though labor-intensive, is a crucial step in effectively treating head lice infestations, but it is not the most pertinent information to include in the teaching session.
4. The healthcare professional caring for a patient who is immobile frequently checks for impaired skin integrity. What is the rationale for this action?
- A. Inadequate blood flow leads to decreased tissue ischemia.
- B. Patients with limited caloric intake develop thicker skin.
- C. Pressure reduces circulation to affected tissue.
- D. Verbalization of skin care needs is decreased.
Correct answer: C
Rationale: The rationale behind checking for impaired skin integrity in an immobile patient is that pressure reduces circulation to the affected tissue. Prolonged pressure on specific body parts can lead to reduced blood flow to those areas, causing tissue damage and potentially leading to pressure ulcers. Choices A, B, and D are incorrect because inadequate blood flow causing decreased tissue ischemia, limited caloric intake leading to thicker skin, and decreased verbalization of skin care needs are not directly related to the rationale for checking for impaired skin integrity in immobile patients.
5. A client with a history of seizures is prescribed phenytoin (Dilantin). Which statement should the LPN/LVN include when teaching the client about this medication?
- A. Do not take the medication with milk to avoid reduced absorption.
- B. Brush and floss your teeth regularly to prevent gum disease.
- C. Avoid taking antacids within 2 hours of the medication.
- D. Report any unusual bleeding or bruising to the healthcare provider.
Correct answer: C
Rationale: The correct answer is to avoid taking antacids within 2 hours of phenytoin. Antacids can interfere with the absorption of phenytoin, reducing its effectiveness. Choice A is incorrect because phenytoin should not be taken with milk, as it may decrease its absorption. Choice B is unrelated to the medication and focuses on dental hygiene. Choice D is important but not directly related to phenytoin; it is more relevant to monitoring for adverse effects of the medication.
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