what is the primary function of surfactant in the lungs
Logo

Nursing Elites

HESI LPN

HESI PN Exit Exam

1. What is the primary function of surfactant in the lungs?

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. During a fire incident in a long-term care facility's kitchen, which task is most crucial for the PN to perform instead of delegating to UAP?

Correct answer: C

Rationale: During a fire emergency, the most critical task for the PN is to identify the method for transporting and evacuating each resident. This task ensures a safe and organized evacuation plan, which is essential for everyone's safety. Delegating this responsibility to an unlicensed assistive personnel (UAP) may lead to errors or delays in the evacuation process. Closing doors to residents' rooms (Choice A) can help contain the fire but is not as urgent as planning the evacuation. While offering comfort and reassurance (Choice B) is important, it should not take precedence over ensuring a safe evacuation. Providing blankets (Choice D) is helpful but does not directly address the primary concern of safely evacuating residents.

3. Which task could the PN safely delegate to the UAP?

Correct answer: A

Rationale: The correct answer is A because oral feeding of a child is a task that can be safely delegated to an unlicensed assistive personnel (UAP). This task involves providing basic care and does not require specialized nursing skills. Choices B, C, and D involve assessments, recording client goals, and evaluating pain, respectively, which all require specialized nursing knowledge, judgment, and skills. These tasks are not within the scope of practice for a UAP.

4. At what age does a 9-year-old child typically lose which of the following teeth?

Correct answer: A

Rationale: A 9-year-old child typically loses their central incisors, not the lateral incisors or second molars. The central incisors are usually among the first teeth that children lose around 6 to 7 years of age, as part of the natural process of shedding primary teeth to make way for permanent teeth. The second molars and cuspids are typically lost later in the mixed dentition phase. Therefore, option A, 'Central incisor,' is the correct answer.

5. What is the most effective way to communicate with a patient who has expressive aphasia?

Correct answer: C

Rationale: The most effective way to communicate with a patient who has expressive aphasia is by using picture boards or communication cards. These tools allow patients to convey their needs and responses more effectively when they struggle to speak. Using picture boards or communication cards (Choice C) is preferred as it provides a visual aid to support communication. Asking yes or no questions (Choice A) may limit the patient's ability to express themselves fully. Encouraging the patient to write responses (Choice B) may not be suitable if the patient also has difficulty writing due to the aphasia. While speaking slowly and clearly (Choice D) is important, it may not be sufficient to overcome the communication challenges faced by patients with expressive aphasia.

Similar Questions

The UAP reports to the PN that an assigned client experiences SOB when the bed is lowered for bathing. Which action should the PN implement?
What is the most appropriate nursing action when a patient on anticoagulant therapy develops sudden, severe back pain?
The nurse enters a male client's room to administer routine morning medications, and the client is on the phone. Which action is best for the nurse to take?
An adult female client with type 1 diabetes mellitus is receiving NPH insulin 35 units in the morning. Which finding should the PN document as evidence that the amount of insulin is inadequate?
What is an essential nursing action before administering a blood transfusion?

Access More Features

HESI LPN Basic
$69.99/ 30 days

  • 5,000 Questions with answers
  • All HESI courses Coverage
  • 30 days access

HESI LPN Premium
$149.99/ 90 days

  • 5,000 Questions with answers
  • All HESI courses Coverage
  • 30 days access

Other Courses