a client is receiving lidocaine iv at 3 mgminute the pharmacy dispenses a 500 ml iv solution of normal saline ns with 2 grams of lidocaine the nurse s
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Nursing Elites

HESI LPN

HESI CAT Exam 2022

1. A client is receiving lidocaine IV at 3 mg/minute. The pharmacy dispenses a 500 ml IV solution of normal saline (NS) with 2 grams of lidocaine. The nurse should regulate the infusion pump to deliver how many ml/hour?

Correct answer: D

Rationale: The infusion rate is calculated based on the concentration of lidocaine and the prescribed rate of infusion. First, convert lidocaine's weight to milligrams (2 grams = 2000 mg). Then, use the formula: (Total volume in ml * dose in mg) / 60 minutes. For this case, (500 ml * 2000 mg) / 60 minutes = 45 ml/hour. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not reflect the accurate calculation based on the provided concentration and infusion rate.

2. A client with rheumatoid arthritis reports a new onset of increasing fatigue. What intervention should the nurse implement first?

Correct answer: C

Rationale: The correct first intervention for a client with rheumatoid arthritis reporting increasing fatigue is to assess the client for pallor. Fatigue can be a sign of anemia or other complications; assessing for pallor can help determine if anemia is the cause. Option A is incorrect as it does not address the underlying cause of fatigue. Option B assumes the cause without further assessment. Option D is important for overall health but assessing for pallor takes precedence to identify immediate issues related to fatigue.

3. 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?

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.

4. The parents of a child who had surgical repair of a myelomeningocele are being taught how to change an occlusive dressing on the child’s back. Which statement by the parents indicates that they understand this procedure?

Correct answer: D

Rationale: The correct answer is D because protecting the incision from fecal contamination is essential to prevent infection and promote healing in a child with a myelomeningocele. This is crucial as fecal matter can introduce harmful bacteria to the wound. Choice A is incorrect as removing the tape slowly to prevent trauma to the skin is a general guideline but not specific to preventing infection. Choice B is incorrect because keeping the dressing dry can lead to complications as the wound needs a moist environment to heal properly. Choice C is incorrect as keeping the skin incision moist may promote infection and delay healing, making it an incorrect statement for postoperative care.

5. At 1130, the nurse assumes care of an adult client with diabetes mellitus who was admitted with an infected foot ulcer. After reviewing the client’s electronic health record, which priority nursing action should the nurse implement?

Correct answer: B

Rationale: Assessing the appearance of the foot wound is the priority action in this scenario. This assessment is crucial to monitor for any signs of infection progression or complications related to the foot ulcer, especially in a client with diabetes mellitus. Administering insulin based on the sliding scale (Choice A) is important but not the immediate priority compared to assessing the foot wound. Obtaining antibiotic peak and trough levels (Choice C) is relevant but not as immediate as assessing the wound for signs of infection. Initiating hourly measurements of urine output (Choice D) is not the priority when compared to assessing the foot wound in a client with an infected foot ulcer.

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