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. What disorder closely matches Suzy's symptoms?
- A. Antisocial personality disorder
- B. Borderline personality disorder
- C. Schizoid personality disorder
- D. Dissociative Identity Disorder
Correct answer: B
Rationale: Suzy's symptoms are characteristic of Borderline Personality Disorder (BPD). BPD includes instability in relationships, self-image, and emotions, as well as impulsivity and self-harm. Choice A, Antisocial personality disorder, is characterized by a disregard for others' rights and lack of empathy, which does not align with Suzy's symptoms. Schizoid personality disorder, choice C, is characterized by a lack of interest in social relationships, which is not a prominent feature in Suzy's case. Dissociative Identity Disorder, choice D, involves the presence of two or more distinct identities or personality states, which is not reflected in Suzy's symptoms.
3. Based on the computer documentation in the EMR, which action should the PN implement?
- A. Give the rubella vaccine subcutaneously
- B. Observe the mother breastfeeding her infant
- C. Call the nursery for the infant's blood type results
- D. Administer hydrocodone/acetaminophen one tablet for pain
Correct answer: A
Rationale: The rubella vaccine is crucial for preventing rubella infection, which can cause severe congenital disabilities if contracted during pregnancy. Administering the vaccine subcutaneously is the correct action based on EMR documentation. Observing breastfeeding, calling the nursery for blood type results, and administering pain medication are not indicated by the EMR documentation and are not relevant to the situation described in the question.
4. The PN is caring for a client who had an acute brain attack with resulting expressive aphasia and urinary incontinence. To ensure care for the client, which task should the PN delegate to the UAP?
- A. Explain how to use a communication board
- B. Document progress in the use of the communication board
- C. Encourage voiding by assisting the client to the bedside commode
- D. Establish a bladder training schedule and methods
Correct answer: C
Rationale: Assisting the client to the bedside commode is an appropriate task for the UAP as it involves basic patient care and mobility assistance, which are within the UAP's scope of practice. Options A and B involve communication techniques and documentation, which are more appropriate for licensed nursing staff. Option D involves establishing a bladder training schedule, which requires assessment and planning skills beyond the UAP's role.
5. A client who is post-operative from a bowel resection is experiencing abdominal distention and pain. The nurse notices the client has not passed gas or had a bowel movement. What should the nurse assess first?
- A. The client's bowel sounds.
- B. The client's fluid intake.
- C. The client's pain level.
- D. The client's surgical incision.
Correct answer: A
Rationale: Assessing bowel sounds is crucial in this situation as it helps determine if the client's gastrointestinal tract is functioning properly. Absent or hypoactive bowel sounds can indicate an ileus, a common post-operative complication. Assessing fluid intake (Choice B) is important but should come after assessing bowel sounds. Pain assessment (Choice C) is essential but addressing the physiological issue should take precedence. Checking the surgical incision (Choice D) is relevant but not the priority when the client is experiencing abdominal distention and potential gastrointestinal complications.
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