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. What is the primary focus of postoperative nursing care for the client with colon trauma?

Correct answer: D

Rationale: The correct answer is D: Observation for and prevention of infection. Postoperative nursing care for a client with colon trauma primarily focuses on preventing infections. Clients with colon trauma are at high risk for infections due to the disruption of the intestinal barrier. Monitoring for signs of infection, maintaining proper wound care, administering antibiotics as prescribed, and implementing strict aseptic techniques are essential in preventing postoperative infections. Choices A, B, and C are incorrect because elevated coagulation studies, fistulas, and hyponatremia are not the primary concerns in the immediate postoperative period for a client with colon trauma.

3. Following a thyroidectomy, a client experiences tetany. The nurse should expect to administer which intravenous medication?

Correct answer: C

Rationale: Following a thyroidectomy, tetany can occur due to hypoparathyroidism, leading to low calcium levels. Therefore, the nurse should administer calcium gluconate intravenously to raise the calcium levels. Choice A, Sodium iodide solution, is incorrect as it is used for thyroid conditions, not for treating tetany. Choice B, Levothyroxine sodium (Synthroid), is incorrect as it is a thyroid hormone replacement and does not address low calcium levels. Choice D, Propranolol (Inderal), is incorrect as it is a beta-blocker used for conditions like hypertension and not indicated for tetany after thyroidectomy.

4. A male client is returned to the surgical unit following a left nephrectomy and is medicated with morphine. His dressing has a small amount of bloody drainage, and a Jackson-Pratt bulb surgical drainage device is in place. Which intervention is most important for the nurse to include in this client's plan of care?

Correct answer: C

Rationale: The most important intervention for the nurse to include in the client's plan of care following a left nephrectomy with a Jackson-Pratt bulb in place is to record drainage from the drain. Monitoring the drainage is crucial as it helps assess for potential complications such as hemorrhage, infection, or other issues related to the surgical site. Assessing urine output is important post-nephrectomy but not as critical as directly monitoring the drainage. Assessing for back muscle aches may be relevant for pain management but not as crucial as monitoring the drainage. Obtaining body weight daily is not directly related to assessing the surgical drain output and is less critical in this scenario.

5. The nurse is caring for a newborn who arrives in the nursery following a precipitous birth on the way to the hospital. A drug screen of the mother reveals the presence of cocaine metabolites. The infant has a heart rate of 175 beats/minute, cries continuously, is irritable, and is hyperreactive to stimuli. Which intervention is most important for the nurse to include in this infant’s plan of care?

Correct answer: B

Rationale: The infant's symptoms, such as a high heart rate, continuous crying, irritability, and hyperreactivity, suggest possible withdrawal effects due to maternal cocaine use. These symptoms can lead to seizures. Therefore, the priority intervention is to implement seizure precautions to ensure the infant's safety. Initiating the infant sepsis protocol is not indicated based on the symptoms presented. Referring to protective child services is important but not the immediate priority. Formula feeding every 3 hours is a routine care measure but does not address the urgent need to prevent potential seizures.

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