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 is admitted to the hospital with a serum sodium level of 128 mEq/L, distended neck veins, and lung crackles. What intervention should the nurse implement?

Correct answer: C

Rationale: In the scenario described, the client presents with signs of fluid overload and hyponatremia. Restricting oral fluid intake is the appropriate intervention to manage fluid overload and correct hyponatremia. Increasing the intake of salty foods (Choice A) and administering NaCl supplements (Choice B) would exacerbate the sodium imbalance. Holding the client's loop diuretic (Choice D) is not directly related to addressing the fluid overload and hyponatremia.

3. A female client with borderline personality disorder is being discharged today. During morning rounds, the client complains about the aloofness of the night shift nurse and expresses joy to see the nurse on duty. Which response is best for the nurse to provide to this client’s dichotomous tendency?

Correct answer: A

Rationale: Choice A is the best response as it acknowledges the client's feelings while exploring their concerns. By asking which nurse was acting aloof, the nurse shows understanding and allows the client to express their feelings further. This response validates the client's emotions and fosters a therapeutic relationship. Choice B focuses on a future action without addressing the immediate concern at hand. Choice C seeks clarification on the night nurse's behavior, which is a good approach but lacks the personal touch of Choice A. Choice D shifts the focus away from the client's current feelings and concerns, missing the opportunity to address the dichotomous thinking displayed by the client.

4. After 2 days of treatment for dehydration, a child continues to vomit and have diarrhea. Normal saline is infusing, and the child’s urine output is 50ml/hour. During morning assessment, the nurse determines that the child is lethargic and difficult to arouse. Which action should the nurse implement?

Correct answer: A

Rationale: Lethargy and difficulty arousing may indicate hypoglycemia, which should be assessed before other actions. Performing a finger stick glucose test is crucial to evaluate the child's blood sugar levels and address hypoglycemia promptly. Increasing the IV fluid flow rate is not indicated without knowing the glucose status. Reviewing 24-hour intake and output is important but not the priority when lethargy and difficulty arousing are present. Obtaining arterial blood gases is not the primary assessment needed in this situation.

5. A school nurse is called to the soccer field because a child has a nosebleed (epistaxis). In what position should the nurse place the child?

Correct answer: A

Rationale: The correct position for a child with a nosebleed (epistaxis) is sitting up and leaning forward. This position helps prevent blood from flowing into the throat and causing choking. Choice B, reclining with the head elevated, and choice D, lying flat on the back, are incorrect as they can cause blood to flow backward into the throat. Choice C, sitting up with the head tilted back, is also incorrect as it can lead to blood flowing down the back of the throat and potentially into the airway.

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