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 is the primary purpose of administering Rho(D) immune globulin (RhoGAM) to an Rh-negative mother after childbirth?
- A. To prevent Rh sensitization in future pregnancies
- B. To treat anemia in the newborn
- C. To increase the mother's white blood cell count
- D. To prevent infection in the newborn
Correct answer: A
Rationale: The correct answer is A: To prevent Rh sensitization in future pregnancies. RhoGAM is given to an Rh-negative mother to prevent the development of antibodies against Rh-positive blood cells. This prevents Rh sensitization, which could lead to hemolytic disease in future Rh-positive pregnancies. Choices B, C, and D are incorrect because RhoGAM is not used to treat anemia in the newborn, increase the mother's white blood cell count, or prevent infection in the newborn.
3. The UAP is caring for a male resident of a long-term care facility who has an external urinary catheter. Which finding should the PN instruct the UAP to report immediately?
- A. Swollen and discolored penile shaft
- B. Prepuce extends over the head of the penis
- C. Leaking urine around the top of the catheter
- D. Moist and excoriated perineal skin folds
Correct answer: A
Rationale: The correct answer is A: Swollen and discolored penile shaft. Swelling and discoloration of the penile shaft may indicate an infection or other complications requiring immediate attention. Prompt reporting allows for timely intervention to prevent further harm to the client. Choice B is incorrect because the prepuce extending over the head of the penis is not an urgent issue. Choice C, leaking urine around the catheter, may require intervention but is not as urgent as the swelling and discoloration described in choice A. Choice D, moist and excoriated perineal skin folds, also needs attention but is not as concerning as the potential complications indicated by the findings in choice A.
4. While assessing an older male client who takes psychotropic medications, the nurse observes uncontrollable hand movements and excessive blinking. Which information in the client's medical record should the nurse review?
- A. Prescription for lorazepam
- B. History of Parkinson's disease
- C. Screening for tardive dyskinesia
- D. Recent urine drug screen report
Correct answer: C
Rationale: The symptoms of uncontrollable hand movements and excessive blinking are indicative of tardive dyskinesia, a possible side effect of long-term use of psychotropic medications. Reviewing the screening for tardive dyskinesia is crucial to assess if these symptoms are related to the medication. Option A, the prescription for lorazepam, is less relevant as the focus should be on potential side effects rather than the specific medication. Option B, history of Parkinson's disease, is not directly related to the observed symptoms, which are more likely linked to medication side effects. Option D, recent urine drug screen report, is not as pertinent in this context compared to reviewing the screening for tardive dyskinesia.
5. A client is recovering from a below-the-knee amputation (BKA). The client reports phantom limb pain. What should the nurse include in the client’s care plan to manage this type of pain?
- A. Apply heat to the residual limb.
- B. Administer prescribed analgesics.
- C. Elevate the residual limb.
- D. Perform range-of-motion exercises.
Correct answer: B
Rationale: Phantom limb pain is a type of pain that feels like it's coming from a body part that's no longer there. It is essential to understand that phantom limb pain is real and should be managed appropriately. Administering prescribed analgesics is the most effective way to address this discomfort. Applying heat, elevating the residual limb, and performing range-of-motion exercises are not effective in managing phantom limb pain since the pain originates from the brain expecting sensory input from the missing limb, rather than being related to physical factors that heat, elevation, or exercises can address.
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