HESI LPN
HESI Fundamentals Exam
1. 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.
2. What action should the nurse take to prevent the development of deep vein thrombosis (DVT) in a client who is postoperative day 2 following hip replacement surgery?
- A. Encourage the client to remain on bed rest as much as possible.
- B. Apply sequential compression devices (SCDs) to the client's legs.
- C. Massage the client's legs to improve circulation.
- D. Encourage the client to perform ankle and foot exercises.
Correct answer: B
Rationale: The correct action to prevent DVT in a postoperative client is to apply sequential compression devices (SCDs) to promote venous return. This helps prevent stasis of blood in the lower extremities, reducing the risk of clot formation. Encouraging bed rest (Choice A) may lead to decreased mobility and increase the risk of DVT. Massaging the client's legs (Choice C) is contraindicated in the presence of DVT as it can dislodge a clot. Encouraging ankle and foot exercises (Choice D) may be beneficial for circulation, but SCDs are more effective at preventing DVT in this scenario.
3. When reviewing EBP about the administration of O2 therapy, what is the recommended maximum flow rate for regulating O2 via nasal cannula?
- A. Regulate O2 via nasal cannula no more than 6L
- B. Regulate O2 via nasal cannula no more than 2L
- C. Regulate O2 via nasal cannula no more than 4L
- D. Regulate O2 via nasal cannula no more than 8L
Correct answer: A
Rationale: The correct answer is to regulate O2 via nasal cannula no more than 6L. This flow rate is generally recommended to ensure adequate oxygen delivery without causing discomfort or potential harm to the patient. Choices B, C, and D are incorrect as they suggest flow rates that are either too low (2L, 4L) or too high (8L). A flow rate of 2L might not provide sufficient oxygen, while 4L could be inadequate for some patients. On the other hand, a flow rate of 8L could be excessive and potentially harmful, leading to complications like oxygen toxicity. Therefore, the optimal recommendation is to regulate O2 via nasal cannula at a maximum of 6L to balance effectiveness and safety.
4. When planning to insert a peripheral IV catheter for an older adult client, which of the following actions should the nurse plan to take?
- A. Insert the catheter at a 45° angle
- B. Place the client's arm in a dependent position
- C. Shave excess hair from the insertion site
- D. Initiate IV therapy in the veins of the hand
Correct answer: B
Rationale: Placing the client's arm in a dependent position is the correct action when inserting a peripheral IV catheter for an older adult client. This position helps veins dilate due to gravity, facilitating easier insertion of the IV catheter. Choice A is incorrect because catheters are typically inserted at a lower angle, around 10-30 degrees. Choice C is unnecessary unless excessive hair impedes the insertion process. Choice D is incorrect as veins in the hand are generally smaller and more prone to complications, making them less ideal for IV therapy in older adults.
5. When documenting client care, which of the following abbreviations should be used?
- A. SS for sliding scale
- B. BRP for bathroom privileges
- C. OJ for orange juice
- D. SQ for subcutaneous
Correct answer: B
Rationale: When documenting client care, it is crucial to use standardized abbreviations to ensure clear communication and prevent misunderstandings. BRP for bathroom privileges is a recognized and commonly used abbreviation in healthcare settings. Choice A, SS for sliding scale, is not a standard abbreviation and can lead to confusion as it could be mistaken for other meanings. Choice C, OJ for orange juice, is informal and may not be universally understood in a healthcare context. Choice D, SQ for subcutaneous, is a valid abbreviation but may not be as relevant in the context of documenting client care compared to BRP, which is more specific and widely accepted.
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