HESI LPN
CAT Exam Practice
1. A client with acute renal failure (ARF) is admitted for uncontrolled type 1 diabetes mellitus and hyperkalemia. The nurse administers an IV dose of regular insulin per sliding scale. Which intervention is the most important for the nurse to include in this client’s plan of care?
- A. Monitor the client’s cardiac activity via telemetry.
- B. Maintain venous access with an infusion of normal saline.
- C. Assess glucose levels via finger stick every 4 to 6 hours.
- D. Evaluate hourly urine output for the return of normal renal function.
Correct answer: A
Rationale: Monitoring cardiac activity is crucial in this scenario because hyperkalemia can lead to serious cardiac dysrhythmias, which can be life-threatening. Regular monitoring of the client’s cardiac activity via telemetry allows for early detection of any potential cardiac complications. Maintaining venous access with a normal saline infusion is important for hydration but does not address the immediate risk of cardiac dysrhythmias posed by hyperkalemia. Assessing glucose levels is essential in diabetes management but is not the priority when dealing with hyperkalemia-induced cardiac risks. Evaluating hourly urine output for the return of normal renal function is important in ARF but is not as urgent as monitoring the client's cardiac activity in the context of hyperkalemia.
2. The nurse working on a mental health unit is prioritizing nursing care activities due to a staffing shortage. One practical nurse (PN) is on the unit with the nurse, and another RN is expected to arrive within two hours. Clients need to be awakened, and morning medications need to be prepared. Which plan is best for the nurse to implement?
- A. Wake all the clients and instruct them to go to the dining area for medication administration
- B. Explain to the clients that it will be necessary to cooperate until another RN arrives
- C. Ask the PN to administer medications as clients are awakened so both nurses are available
- D. Allow the clients to sleep until a third staff person can assist with unit activities
Correct answer: C
Rationale: The best plan for the nurse to implement is to ask the PN to administer medications as clients are awakened. This approach ensures that medication administration and client care are efficiently managed despite the staffing shortage. Option A is incorrect as it may disrupt the workflow and create unnecessary chaos. Option B is not the best choice as it does not address the immediate need for medication administration. Option D is not ideal as it delays client care until additional staff arrive, potentially compromising patient safety and timely medication administration.
3. The nurse assesses a 5-year-old child who has been experiencing frequent headaches and vomiting. The nurse notices that the child is lethargic and has a positive Brudzinski sign. Which action should the nurse implement first?
- A. Perform a complete neurological examination
- B. Measure the child’s head circumference
- C. Check the child’s blood glucose level
- D. Notify the healthcare provider immediately
Correct answer: D
Rationale: The correct action for the nurse to implement first is to notify the healthcare provider immediately. The presence of lethargy and a positive Brudzinski sign in a child experiencing frequent headaches and vomiting may indicate a serious condition like meningitis. Prompt notification of the healthcare provider is crucial for timely evaluation and initiation of appropriate treatment. Choice A is incorrect because while a neurological examination may be necessary, it is not the priority when a potentially serious condition like meningitis is suspected. Choice B is incorrect as measuring the child's head circumference is not the most immediate action to take in this situation. Choice C is also incorrect as checking the child's blood glucose level, although important in some cases, is not the priority when a child presents with symptoms suggestive of meningitis.
4. The healthcare provider receives a report on four clients who are complaining of increased pain. Which client requires immediate attention by the healthcare provider?
- A. Burning pain due to a Morton’s neuroma
- B. Sharp pain related to a crushed femur
- C. Paresthesia of fingers due to carpal tunnel syndrome
- D. Stinging pain related to plantar fasciitis
Correct answer: B
Rationale: Sharp pain related to a crushed femur indicates a severe condition and potential serious complications that require immediate attention. Crushed femur can lead to severe bleeding, nerve damage, or compartment syndrome, which are critical and life-threatening. The other choices, although painful, are less likely to present immediate life-threatening issues. Morton’s neuroma, carpal tunnel syndrome, and plantar fasciitis are painful conditions but are not typically associated with urgent, life-threatening complications like a crushed femur.
5. The nurse is caring for a client who is receiving continuous ambulatory peritoneal dialysis (CAPD) and notes that the output flow is 100ml less than the input flow. Which actions should the nurse implement first?
- A. Continue to monitor intake and output with the next exchange
- B. Check the client's blood pressure and serum bicarbonate levels
- C. Irrigate the dialysis catheter
- D. Change the client's position
Correct answer: D
Rationale: In this situation, the priority action for the nurse is to change the client's position. Altering the client's position can help facilitate better fluid drainage in peritoneal dialysis, potentially resolving the issue without the need for more invasive interventions. Continuing to monitor intake and output (Choice A) is important but addressing the immediate drainage issue takes precedence. Checking blood pressure and serum bicarbonate levels (Choice B) is not directly related to the observed output flow discrepancy. Irrigating the dialysis catheter (Choice C) should not be the initial action as it is more invasive and should be considered only if repositioning does not resolve the issue.
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