HESI LPN
HESI PN Exit Exam 2024
1. When administering parenteral iron, which action would be inconsistent with proper administration?
- A. Using the Z-track method
- B. Using an air bubble to avoid withdrawing medication into subcutaneous tissue
- C. Not massaging the injection site
- D. Using the deltoid muscle for administration
Correct answer: D
Rationale: The correct answer is D: Using the deltoid muscle for administration. Administering parenteral iron in the deltoid muscle is not recommended due to the risk of irritation and pain. The Z-track method (choice A) is preferred to prevent staining and irritation of the skin when administering irritating medications like iron. Using an air bubble (choice B) to avoid withdrawing medication into subcutaneous tissue is a common practice to ensure accurate administration. Not massaging the injection site (choice C) is also a standard practice to prevent potential irritation or bleeding at the injection site.
2. Which disorder is characterized by demyelination of neurons in the central nervous system?
- A. Multiple sclerosis
- B. Parkinson's disease
- C. Alzheimer's disease
- D. Huntington's disease
Correct answer: A
Rationale: Multiple sclerosis is the correct answer. It is an autoimmune disease that specifically targets and damages the myelin sheath surrounding neurons in the central nervous system. This demyelination disrupts the transmission of nerve signals and leads to a variety of neurological symptoms. Parkinson's disease (Choice B), Alzheimer's disease (Choice C), and Huntington's disease (Choice D) are neurodegenerative disorders that do not primarily involve demyelination of neurons in the CNS. Parkinson's disease is characterized by the loss of dopamine-producing neurons, Alzheimer's disease by the formation of plaques and tangles in the brain, and Huntington's disease by a genetic mutation affecting nerve cells.
3. The practical nurse is caring for a client who had a total laryngectomy, left radical neck dissection, and tracheostomy. The client is receiving nasogastric tube feedings via an enteral pump. Today the rate of feeding is increased from 50 ml/hr to 75 ml/hr. What parameter should the PN use to evaluate the client's tolerance to the rate of the feeding?
- A. Daily weight
- B. Gastric residual volumes
- C. Bowel sounds
- D. Urinary and stool output
Correct answer: B
Rationale: Monitoring gastric residual volumes helps to assess how well the client is tolerating the increased feeding rate. High residuals may indicate delayed gastric emptying, which could lead to complications like aspiration. This helps in adjusting the feeding plan as necessary. Daily weight (Choice A) is not the most appropriate parameter to evaluate tolerance to feeding rate changes. Bowel sounds (Choice C) and urinary/stool output (Choice D) are important assessments but do not directly indicate tolerance to enteral feeding rate changes.
4. After admission, which observation is most important for the nurse to report immediately for an adult client who weighs 150 pounds and has partial-thickness and full-thickness burns over 40% of the body from a house fire?
- A. Poor appetite and refusal to eat
- B. Systolic blood pressure at 102
- C. Painful moaning and crying
- D. Urinary output of 20 ml/hr
Correct answer: D
Rationale: A urinary output of 20 ml/hr is a sign of inadequate kidney perfusion and could indicate hypovolemic shock, which requires immediate intervention. In this situation, with severe burns over a large portion of the body, monitoring urinary output is crucial to assess kidney function and fluid status. Poor appetite, systolic blood pressure at 102, and painful moaning and crying are important but do not indicate the immediate need for intervention like inadequate urinary output does.
5. At 1200, the practical nurse learns that a client's 0900 dose of an anticonvulsant was not given. The next scheduled dose is at 2100. Which action should the PN take?
- A. Administer half of the missed dose immediately
- B. Administer the missed dose as soon as possible
- C. Give the missed dose with the next scheduled dose
- D. Withhold the missed dose unless seizure activity occurs
Correct answer: B
Rationale: Administering the missed dose as soon as possible is crucial in this situation. Missing an anticonvulsant dose can lead to breakthrough seizures, which are harmful to the client. Administering the missed dose promptly helps maintain the therapeutic level of the medication and reduces the risk of seizure activity. Giving half the dose may not provide adequate protection against seizures. Delaying the dose until the next scheduled time increases the time the client is without the medication, potentially increasing the risk of seizures. Withholding the missed dose unless seizure activity occurs is not recommended, as prevention is key in managing anticonvulsant therapy.
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