HESI LPN
HESI Fundamentals Exam
1. When assessing a client’s heart sounds, the nurse hears a scratching sound during both systole and diastole. These sounds become more distinct when the nurse has the client sit up and lean forward. The nurse should document the presence of a:
- A. Pericardial friction rub
- B. Heart murmur
- C. S3 heart sound
- D. S4 heart sound
Correct answer: A
Rationale: A pericardial friction rub is characterized by a scratching sound that occurs during both systole and diastole. It becomes more distinct when the client is sitting up and leaning forward. This indicates an inflammation of the pericardial sac rubbing against the layers of the heart. Heart murmurs (choice B) are abnormal heart sounds caused by turbulent blood flow, not by friction like in a pericardial rub. S3 and S4 heart sounds (choices C and D) are additional heart sounds related to abnormal ventricular filling, not to pericardial friction rubs.
2. A healthcare professional is preparing to administer 750 mL of 0.9% sodium chloride IV to infuse over 7 hours. The healthcare professional should set the pump to deliver how many mL/hr?
- A. 107 mL/hr
- B. 75 mL/hr
- C. 90 mL/hr
- D. 60 mL/hr
Correct answer: A
Rationale: To calculate the mL/hr rate for the infusion, divide the total volume (750 mL) by the total time (7 hours). 750 mL ÷ 7 hours = 107 mL/hr. This means that the pump should be set to deliver approximately 107 mL/hr. Choice B (75 mL/hr) is incorrect because it does not reflect the correct calculation. Choice C (90 mL/hr) is incorrect as it does not align with the accurate calculation. Choice D (60 mL/hr) is incorrect as it does not match the correct mL/hr rate obtained through the calculation.
3. A nurse is providing home care for a client who is receiving tube feedings and medication through a gastrostomy tube. The family member providing the feedings reports that the client has begun to have diarrhea. For which of the following practices should the nurse intervene?
- A. The family member washes out the feeding bag with warm water once every 24 hours.
- B. The family member washes out the feeding bag with hot water once every 24 hours.
- C. The family member washes out the feeding bag with soap and water every 24 hours.
- D. The family member changes the feeding bag every 24 hours.
Correct answer: A
Rationale: The correct answer is A. Washing out the feeding bag with warm water once every 24 hours is not sufficient to prevent bacterial growth and can lead to diarrhea. Using hot water may damage the feeding bag. Washing out the feeding bag with soap and water every 24 hours is excessive and may leave residue that could be harmful. Changing the feeding bag every 24 hours is important for preventing infections but does not directly address the issue of diarrhea in this case.
4. A client with a history of falls is under the care of a nurse. Which of the following actions should the nurse take to prevent falls?
- A. Keep the client's bed in the lowest position.
- B. Encourage the client to wear non-slip socks.
- C. Place a fall risk sign on the client's door.
- D. Use a gait belt when ambulating the client.
Correct answer: A
Rationale: Keeping the client's bed in the lowest position is an essential measure to prevent falls. Lowering the bed reduces the risk of injury if the client falls out of bed by decreasing the distance of the fall. Encouraging the client to wear non-slip socks (Choice B) may help prevent slips on smooth surfaces but does not address the risk of falls in other scenarios. Placing a fall risk sign on the client's door (Choice C) alone does not actively prevent falls but serves as a warning. Using a gait belt when ambulating the client (Choice D) is important for assisting with mobility but does not directly address fall prevention in the client's environment.
5. A healthcare provider is assessing a client with a diagnosis of acute pancreatitis. Which laboratory value would be most concerning?
- A. Serum amylase of 200 U/L
- B. Serum lipase of 250 U/L
- C. Blood glucose of 200 mg/dL
- D. Serum calcium of 7.5 mg/dL
Correct answer: D
Rationale: In acute pancreatitis, hypocalcemia (low serum calcium) is a critical finding that is associated with a poor prognosis and requires immediate attention. Serum amylase and lipase are typically elevated in acute pancreatitis due to pancreatic inflammation, but they are not indicators of severity. Blood glucose levels may be elevated due to stress or underlying conditions but are not directly related to the severity of acute pancreatitis. Therefore, the most concerning value in this scenario is the low serum calcium level, which can have significant implications for the client's prognosis.
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