HESI LPN
HESI Fundamentals Study Guide
1. A client with a history of chronic renal failure is admitted with generalized edema. Which laboratory value should the LPN/LVN monitor to assess the client's fluid balance?
- A. Serum potassium
- B. Serum calcium
- C. Serum albumin
- D. Serum sodium
Correct answer: C
Rationale: The correct answer is C, Serum albumin. In clients with chronic renal failure and generalized edema, monitoring serum albumin levels is crucial as it is a key indicator of fluid balance. Low serum albumin levels can contribute to edema formation due to decreased oncotic pressure, indicating fluid imbalance. Serum potassium (Choice A) is more related to kidney function and electrolyte balance in renal failure patients. Serum calcium (Choice B) is important for bone health but is not directly related to fluid balance. Serum sodium (Choice D) is more indicative of hydration status and electrolyte balance but may not directly reflect fluid balance in the context of chronic renal failure and edema.
2. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
3. A healthcare professional is preparing to administer dextrose 5% in water (D5W) 1,000-mL IV to infuse over 10 hr. How many mL/hr should the IV infusion pump be set to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 100 mL/hr
- B. 150 mL/hr
- C. 75 mL/hr
- D. 50 mL/hr
Correct answer: A
Rationale: To infuse 1,000 mL over 10 hr, the IV pump should be set to deliver 100 mL/hr. This calculation is derived by dividing the total volume (1,000 mL) by the total time in hours (10 hr), resulting in the infusion rate of 100 mL/hr. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation for this scenario.
4. A client with Guillain-Barre syndrome is in a non-responsive state, yet vital signs are stable and breathing is independent. What should the nurse document to most accurately describe the client's condition?
- A. Comatose, breathing unlabored
- B. Glascow Coma Scale 8, respirations regular
- C. Appears to be sleeping, vital signs stable
- D. Glascow Coma Scale 13, no ventilator required
Correct answer: B
Rationale: The correct answer is B. When documenting a client in a non-responsive state with stable vital signs and independent breathing, the nurse should document the Glasgow Coma Scale score to assess the level of consciousness and the regularity of respirations. Choice A is incorrect because 'comatose' implies a deeper level of unconsciousness than described in the scenario. Choice C is incorrect as it does not provide a specific assessment like the Glasgow Coma Scale score. Choice D is incorrect as a Glasgow Coma Scale score of 13 indicates a more alert state than described in the scenario.
5. A client is scheduled for a total laryngectomy. Which of the following interventions is the priority for the nurse?
- A. Schedule a support session for the client.
- B. Explain the techniques of esophageal speech.
- C. Review the use of artificial larynx with the client.
- D. Determine the client's reading ability.
Correct answer: B
Rationale: The priority intervention for a client scheduled for a total laryngectomy is to explain the techniques of esophageal speech. This is crucial for the client's post-surgery communication. Option A, scheduling a support session, is important but not the priority as ensuring the client can communicate effectively comes first. Option C, reviewing the use of artificial larynx, is relevant but not the priority compared to teaching esophageal speech. Option D, determining the client's reading ability, is not as critical as ensuring the client learns a primary method of communication following the laryngectomy.
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