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. A client enters the emergency department unconscious via ambulance from the client's workplace. What document should be given priority to guide the direction of care for this client?
- A. The statement of client rights and the client self-determination act
- B. Orders written by the healthcare provider
- C. A notarized original copy of advance directives brought in by the partner
- D. The clinical pathway protocol of the agency and the emergency department
Correct answer: C
Rationale: In the scenario described, when a client arrives unconscious, priority should be given to a notarized original copy of advance directives brought in by the partner. Advance directives are legal documents that specify a person's healthcare wishes and decision-making preferences in advance. These directives guide healthcare providers in delivering care according to the client's preferences when the client is unable to communicate. The statement of client rights and the client self-determination act (Choice A) are important but do not provide specific care instructions. Orders written by the healthcare provider (Choice B) may not reflect the client's wishes. Clinical pathway protocols (Choice D) are valuable but do not address the individualized care preferences of the client.
3. 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.
4. A nurse has noticed several occasions in the past week when another nurse on the unit seemed drowsy and unable to focus on the issue at hand. Today, the nurse was found asleep in a chair in the break room not during a break time. Which of the following actions should the nurse take?
- A. Alert the American Nurses Association.
- B. Fill out an incident report.
- C. Report the observations to the nurse manager on the unit.
- D. Leave the nurse alone to sleep.
Correct answer: C
Rationale: Reporting the observations to the nurse manager is the appropriate action to ensure the safety of the clients and address potential impairment. The nurse manager can take necessary steps to assess the situation and intervene if needed. Alerting the American Nurses Association (Choice A) is not necessary at this stage as the immediate concern is the safety of clients in the unit. Filling out an incident report (Choice B) may be required later, but the priority is to address the issue promptly by involving the immediate supervisor. Leaving the nurse alone to sleep (Choice D) is not a safe option as it does not address the underlying problem of potential impairment and safety concerns; it is essential to address the issue promptly to ensure patient safety.
5. A client with diabetes mellitus is learning to self-administer insulin. Which action by the client indicates the need for further teaching?
- A. The client rotates injection sites on the abdomen.
- B. The client draws up the insulin dose after warming the vial to room temperature.
- C. The client pinches the skin before injecting the insulin.
- D. The client injects the insulin at a 90-degree angle.
Correct answer: B
Rationale: Drawing up insulin after warming the vial to room temperature indicates a need for further teaching, as insulin should be at room temperature for administration. Choice A is correct as rotating injection sites helps prevent lipodystrophy. Choice C is correct as pinching the skin helps ensure proper subcutaneous injection. Choice D is correct as injecting insulin at a 90-degree angle is the recommended technique for subcutaneous injections.
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