HESI LPN
HESI PN Exit Exam
1. What is the primary action a healthcare professional should take when a patient with a suspected myocardial infarction (MI) arrives in the emergency department?
- A. Apply a cold compress to the chest
- B. Administer oxygen and obtain an electrocardiogram (ECG)
- C. Encourage the patient to walk to reduce anxiety
- D. Provide a high-carbohydrate meal
Correct answer: B
Rationale: Administering oxygen and obtaining an ECG are crucial initial steps when managing a suspected myocardial infarction (MI). Oxygen helps improve oxygenation to the heart muscle, while an ECG is essential to diagnose an MI promptly. Applying a cold compress, encouraging the patient to walk, or providing a high-carbohydrate meal are not appropriate actions in the initial management of a suspected MI. Applying a cold compress can delay necessary interventions, encouraging the patient to walk may worsen the condition, and providing a high-carbohydrate meal is irrelevant to the immediate needs of a patient with a suspected MI.
2. 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.
3. The UAP reports to the nurse that a client refused to bathe for the third consecutive day. Which action is best for the nurse to take?
- A. Explain the importance of good hygiene to the client
- B. Ask family members to encourage the client to bathe
- C. Reschedule the bath for the following day
- D. Ask the client why the bath was refused
Correct answer: D
Rationale: The correct action for the nurse to take is to ask the client why the bath was refused. Understanding the client's reason for refusal is crucial in identifying and addressing any underlying concerns or issues that may be contributing to the refusal. This approach promotes open communication, client-centered care, and helps in developing a plan of care that is tailored to the client's needs and preferences. Choices A, B, and C do not directly address the root cause of the refusal and may not effectively resolve the situation.
4. A client who is post-operative from a spinal fusion surgery reports a sudden onset of severe headache when sitting up. What is the nurse’s priority action?
- A. Administer pain medication.
- B. Lay the client flat and notify the healthcare provider.
- C. Encourage the client to drink more fluids.
- D. Assess the client’s surgical site for drainage.
Correct answer: B
Rationale: In this scenario, the correct action is to lay the client flat and notify the healthcare provider. A severe headache in a post-operative spinal fusion patient can indicate a spinal fluid leak, which is a medical emergency. By laying the client flat, the nurse helps reduce symptoms by decreasing pressure differentials. Administering pain medication without further assessment or intervention is inappropriate before identifying the cause of the headache. Encouraging the client to drink more fluids is not the priority when a serious complication like a spinal fluid leak is suspected. While assessing the surgical site is important, it is not the priority when a potentially life-threatening complication is suspected.
5. Which hormone is primarily responsible for the regulation of calcium and phosphate in the blood?
- A. Parathyroid hormone
- B. Insulin
- C. Cortisol
- D. Thyroxine
Correct answer: A
Rationale: Parathyroid hormone is the correct answer. It regulates calcium and phosphate levels in the blood by increasing calcium reabsorption in the kidneys and releasing calcium from bones. Insulin is involved in glucose metabolism, not calcium and phosphate regulation. Cortisol is a stress hormone and is not primarily responsible for regulating calcium and phosphate levels. Thyroxine is a thyroid hormone that primarily regulates metabolism, not calcium and phosphate in the blood.
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