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. At the first dressing change, the PN tells the client that her mastectomy incision is healing well, but the client refuses to look at the incision and refuses to talk about it. Which response by the PN to the client's silence is best?

Correct answer: B

Rationale: Acknowledging the client's feelings and providing emotional support without pressuring them to look at the incision is important. Choice B is the best response as it respects the client's emotional readiness to confront their body image changes. The client's autonomy and emotional needs are prioritized in this response. Choice A may invalidate the client's feelings by assuming the incision is not as bad as they think, potentially dismissing their emotions. Choice C is insensitive as it imposes a particular view of recovery on the client, disregarding their current emotional state. Choice D may escalate the situation by suggesting the need for another nurse, which could make the client feel uncomfortable and pressured.

3. After spinal fusion surgery, a client reports numbness and tingling in the legs. What should the nurse do first?

Correct answer: A

Rationale: After spinal fusion surgery, numbness and tingling in the legs may indicate nerve compression or damage. The priority action for the nurse is to assess the client’s neurovascular status in the lower extremities. This assessment will help determine the cause and severity of the symptoms, guiding further interventions. Repositioning the client may be necessary for comfort, but assessing neurovascular status is the initial step. Administering pain medication should only follow the assessment to address any discomfort. Notifying the healthcare provider immediately is not the first action unless there are emergent signs requiring urgent intervention.

4. The PN is reviewing care instructions with a client who has diabetic retinopathy and is experiencing glare around lights. What should the PN reinforce with the client?

Correct answer: B

Rationale: The correct answer is B. Avoiding driving at night is recommended for clients experiencing glare around lights due to diabetic retinopathy. This can help reduce the risk of accidents and visual discomfort. Making adjustments to the personal schedule to avoid nighttime driving is a practical approach to manage the glare. Choices A, C, and D are incorrect because covering eyes with compresses, exerting pressure on the inner canthus, or applying an eye shield are not effective strategies for managing glare associated with diabetic retinopathy.

5. What intervention should the PN implement when taking the rectal temperature of an adult client?

Correct answer: C

Rationale: When taking a rectal temperature, it is essential to hold the thermometer in place the entire time to ensure safety, accuracy, and prevent the thermometer from slipping out. Choice A, lubricating the tip of the thermometer with a water-based gel, is important for comfort and ease of insertion. Choice B, gently inserting the thermometer 1 inch into the rectum, is more accurate for adults than inserting it 3 inches. Choice D, placing the client in the left lateral position, is not necessary for a rectal temperature measurement.

Similar Questions

What is the primary reason for applying sequential compression devices (SCDs) to a patient’s legs postoperatively?
An older postoperative client has the nursing diagnosis 'impaired mobility related to fear of falling.' Which desired outcome best directs the PN's actions for the client?
The PN determines that a client with cirrhosis is experiencing peripheral neuropathy. What action should the PN take?
The client with schizophrenia who continues to repeat the last words heard is exhibiting a sign of disturbed thought processes. Which nursing problem should the nurse document in the medical record?
What is the most common cause of acute pancreatitis?

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