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. An occupational health nurse is caring for an employee who was exposed to an unknown dry chemical, resulting in a chemical burn. Which of the following interventions should the nurse include in the plan of care?
- A. Irrigate the affected area with running water.
- B. Wash the affected area with antibacterial soap.
- C. Brush the chemical off the skin and clothing.
- D. Leave the clothing in place until emergency personnel arrive.
Correct answer: C
Rationale: The correct intervention for an employee exposed to an unknown dry chemical is to brush off the chemical from the skin and clothing. This helps prevent further skin contact before irrigation can be done. Irrigating the affected area with running water is crucial after brushing off the chemical to minimize the exposure. Washing the affected area with antibacterial soap is not appropriate for chemical burns, as soap can react with certain chemicals and worsen the situation. Leaving the clothing in place until emergency personnel arrive may allow the chemical to continue to harm the skin and should be avoided.
3. A group of newly licensed nurses is being taught about the Braden Scale by a nurse. Which of the following responses by a newly licensed nurse indicates an understanding of the teaching?
- A. “The client’s age is not a factor in the measurement.”
- B. “The scale measures six elements.”
- C. “A lower score indicates a higher risk of pressure ulcers.”
- D. “Each element is scored on a range from 1 to 4 points.”
Correct answer: B
Rationale: Choice B is the correct answer because the Braden Scale measures six elements: Sensory Perception, Moisture, Activity, Mobility, Nutrition, Friction, and Shear. The other choices are incorrect because: Choice A states that the client's age is not a factor in the measurement, which is accurate as age is not included in the Braden Scale. Choice C incorrectly states that a lower score indicates a higher risk of pressure ulcers, which is the opposite of how the Braden Scale works. Choice D inaccurately describes the scoring range of each element on the Braden Scale, which is not from 1 to 4 points but rather from 1 to 3.
4. A nurse is caring for a client who is unstable and has vital signs measured every 15 minutes by an electronic blood pressure machine. The nurse notices the machine begins to measure the blood pressure at varied intervals and the readings are inconsistent. Which of the following actions should the nurse take?
- A. Discontinue the machine and measure the blood pressure manually every 15 minutes.
- B. Adjust the machine settings.
- C. Clean the machine to ensure accuracy.
- D. Increase the frequency of the readings.
Correct answer: B
Rationale: In this scenario, the nurse should adjust the machine settings. If the electronic blood pressure machine is providing varied intervals and inconsistent readings, it indicates a potential malfunction. Changing the settings may help correct the issue and ensure accurate measurements. Discontinuing the machine and measuring manually every 15 minutes (Choice A) may be time-consuming and impractical. Cleaning the machine (Choice C) is important for routine maintenance but may not address the current issue of varied intervals and inconsistent readings. Increasing the frequency of the readings (Choice D) does not address the problem of inaccurate measurements caused by the malfunctioning machine.
5. A patient requires repositioning every 2 hours. Which task can the nurse delegate to the nursing assistive personnel?
- A. Determining the level of comfort
- B. Changing the patient's position
- C. Identifying immobility hazards
- D. Assessing circulation
Correct answer: B
Rationale: The correct answer is B: 'Changing the patient's position.' Repositioning the patient involves physically moving and adjusting their position in bed, which is a task that can be safely delegated to nursing assistive personnel (NAP). This task does not require clinical judgment or assessment skills beyond the ability to follow guidelines for proper positioning. Choices A, C, and D involve assessments or judgments that require a higher level of training and knowledge, making them more appropriate for a nurse to perform. Choice A involves assessing comfort, which may involve subjective factors and individual preferences. Choice C involves identifying hazards related to immobility, which requires understanding the potential risks and complications associated with immobility. Choice D involves assessing circulation, which requires a higher level of clinical knowledge and understanding of circulatory issues.
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