HESI LPN
HESI PN Exit Exam
1. What is the primary function of surfactant in the lungs?
- A. Reduce surface tension
- B. Enhance oxygen absorption
- C. Facilitate carbon dioxide release
- D. Increase lung volume
Correct answer: A
Rationale: The primary function of surfactant in the lungs is to reduce surface tension in the alveoli. This reduction in surface tension prevents lung collapse and allows for easier breathing. It is particularly crucial in premature infants to help with lung expansion. Choice B is incorrect because surfactant primarily affects surface tension, not oxygen absorption. Choice C is incorrect because surfactant's main role is not in facilitating carbon dioxide release. Choice D is incorrect because surfactant does not directly increase lung volume; its main role is in reducing surface tension.
2. A nurse is caring for a client with schizophrenia who continues to repeat the last words heard. Which nursing problem should the nurse document in the medical record?
- A. Altered thought processes
- B. Impaired social interaction
- C. Risk for self-directed violence
- D. Disturbed thought processes
Correct answer: D
Rationale: The correct answer is D: Disturbed thought processes. Echolalia, or the repetition of words, is indicative of disturbed thought processes, a common symptom in clients with schizophrenia. Choice A (Altered thought processes) is a more appropriate term than 'Disturbed thought processes' to describe the issue of echolalia. Choice B (Impaired social interaction) is not the best option in this scenario as echolalia is not primarily a social interaction issue. Choice C (Risk for self-directed violence) is not directly related to the symptom described in the question, which is echolalia, indicating a disturbance in thought processes.
3. Which of the following components of nutrition has a primary function of helping with tissue growth and repair?
- A. Vitamin D
- B. Vitamin E
- C. Protein
- D. Fat
Correct answer: C
Rationale: Protein is the correct answer as it is essential for tissue growth and repair. Proteins are composed of amino acids, the building blocks of body tissues. While vitamins D and E have important roles in the body, they are not primarily responsible for tissue growth and repair. Fats are crucial for various bodily functions, like providing energy, but they are not the primary component involved in tissue growth and repair.
4. A client post-mastectomy is concerned about the risk of lymphedema. What should the nurse include in the discharge instructions to minimize this risk?
- A. Wear compression garments on the affected arm.
- B. Avoid venipunctures and blood pressure measurements on the affected arm.
- C. Perform vigorous exercises to strengthen the affected arm.
- D. Keep the affected arm elevated at all times.
Correct answer: B
Rationale: To minimize the risk of lymphedema after a mastectomy, it is essential to instruct the client to avoid venipunctures and blood pressure measurements on the affected arm. These procedures can lead to trauma or impede lymphatic flow, increasing the risk of lymphedema. Wearing compression garments helps manage lymphedema but is not preventive. Performing vigorous exercises can strain the affected arm and increase the risk of lymphedema. Keeping the affected arm elevated at all times is unnecessary and not an effective preventive measure against lymphedema.
5. The PN and UAP enter a client's room and find the client lying on the bed. The PN determines that the client is unresponsive. Which instruction should the PN give the UAP first?
- A. Obtain emergency help
- B. Feel for a carotid pulse
- C. Bring a glucometer to the room
- D. Check the blood pressure
Correct answer: A
Rationale: The correct answer is to instruct the UAP to obtain emergency help first. When a client is unresponsive, it could indicate a life-threatening condition that requires immediate intervention. Ensuring emergency help is on the way is the priority to address the potentially critical situation. Feeling for a carotid pulse, bringing a glucometer, or checking the blood pressure are important assessments but should come after taking steps to secure immediate assistance.
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