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. The nurse is caring for a 4-year-old 2 hours after tonsillectomy and adenoidectomy. Which of the following assessments must be reported immediately?
- A. Vomiting of dark emesis
- B. Complaints of throat pain
- C. Apical heart rate of 110
- D. Increased restlessness
Correct answer: D
Rationale: Increased restlessness must be reported immediately as it may indicate bleeding or other complications post-tonsillectomy and adenoidectomy. This could be a sign of a developing issue that requires urgent intervention. Vomiting of dark emesis, complaints of throat pain, and an apical heart rate of 110 are important to monitor but do not indicate an immediate need for reporting as compared to the potential seriousness of increased restlessness in this scenario.
3. A nurse is planning care for a client who reports abdominal pain. An assessment by the nurse reveals the client has a temperature of 39.2°C (102°F), heart rate of 105/min, a soft tender abdomen, and menses overdue by 2 days. Which of the following findings should be the nurse’s priority?
- A. Temperature
- B. Menses overdue
- C. Soft tender abdomen
- D. Heart rate
Correct answer: A
Rationale: The correct answer is A: Temperature. A high temperature of 39.2°C (102°F) indicates a fever, which can be a sign of infection or another serious condition. Investigating the cause of the fever is a priority to address any underlying health issue promptly. Menses overdue (choice B) could be relevant but is not as urgent as addressing a fever. A soft tender abdomen (choice C) is important but may be a consequence of the underlying condition causing the fever. Heart rate (choice D) is also significant, but the priority here is to identify the cause of the fever.
4. A client asks a nurse about their Snellen eye test results. The client's visual acuity is 20/30. Which of the following responses should the nurse make?
- A. “Your eyes see at 20 feet what visually unimpaired eyes see at 30 feet.”
- B. “Your right eye can see the chart clearly at 20 feet, and your left eye can see the chart clearly at 30 feet.”
- C. “Your eyes see at 30 feet what visually unimpaired eyes see at 20 feet.”
- D. “Your left eye can see the chart clearly at 20 feet, and your right eye can see the chart clearly at 30 feet.”
Correct answer: A
Rationale: The correct answer is A: 'Your eyes see at 20 feet what visually unimpaired eyes see at 30 feet.' In the Snellen eye test, a visual acuity of 20/30 means that the client sees at 20 feet what a person with normal vision sees at 30 feet. This indicates that the client's vision is slightly worse than average. Choice B is incorrect as it incorrectly describes the visual acuity of each eye individually, rather than the combined visual acuity. Choice C is incorrect as it misinterprets the meaning of the Snellen eye test results by reversing the values. Choice D is incorrect as it inaccurately describes the visual acuity of the client's eyes, attributing different visual acuities to each eye instead of a combined measurement as indicated by 20/30.
5. A nurse is caring for a client who has tuberculosis. Which of the following precautions should the nurse plan to implement when working with the client?
- A. Airborne
- B. Droplet
- C. Protective
- D. Contact
Correct answer: A
Rationale: Tuberculosis is an infectious disease that requires airborne precautions to prevent the transmission of infectious droplets. Airborne precautions involve wearing a mask, such as an N95 respirator, to protect against inhaling infectious particles. Droplet precautions are for diseases spread through respiratory droplets larger than those in airborne transmission, such as influenza. Protective precautions are not specific to respiratory infections and are more general measures to protect patients from harm. Contact precautions are used for diseases spread by direct or indirect contact, such as MRSA or C. diff infections, not for tuberculosis.
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