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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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. The nurse is making assignments for a new graduate from a practical nursing program who is orienting to the unit. Because the unit is particularly busy this day, there will be little time to provide supervision of this new employee. Which client is the best for the nurse to assign this newly graduate practical nurse? A client

Correct answer: A

Rationale: The correct answer is option A because this client is the most stable and requires less supervision. Assigning a client whose discharge has been delayed due to a postoperative infection to the newly graduate practical nurse would be appropriate during a busy day as they are likely to need routine care and monitoring rather than immediate intensive interventions. Option B involves a client with poorly controlled type 2 diabetes on a sliding scale for insulin administration, which requires close monitoring and prompt intervention, making it a less suitable assignment for a new graduate who may need more guidance. Option C, a newly admitted patient with a head injury requiring frequent assessments, would demand a higher level of vigilance and expertise, which may be challenging for a new graduate nurse to handle without adequate supervision. Option D, a patient receiving IV heparin regulated based on protocol, involves complex medication management that may be too advanced for a new graduate nurse without sufficient oversight.

3. The client had gastric bypass surgery yesterday. Which intervention is most important for the nurse to implement during the first 24 postoperative hours?

Correct answer: D

Rationale: Monitoring hourly urinary output is crucial during the first 24 postoperative hours to assess kidney function, fluid balance, and early detection of complications like dehydration or inadequate kidney perfusion. Inserting an indwelling urinary catheter is not routinely necessary after gastric bypass surgery unless there are specific indications. Monitoring for an incisional hernia is important but not the highest priority in the immediate postoperative period. Instructing the client to eat small frequent meals is essential for long-term dietary management after gastric bypass surgery, but not the most critical intervention during the initial 24 hours.

4. An older adult male is admitted with complications related to chronic obstructive pulmonary disease (COPD). He reports progressive dyspnea that worsens on exertion, and his weakness has increased over the past month. The nurse notes that he has dependent edema in both lower legs. Based on these assessment findings, which dietary instruction should the nurse provide?

Correct answer: A

Rationale: Dependent edema in both lower legs is a sign of fluid overload, which can exacerbate dyspnea in patients with COPD. Restricting daily fluid intake can help reduce the edema and alleviate breathing difficulties. A low-protein diet is not necessary unless there are specific renal concerns. Eating meals at the same time daily or limiting high-calorie foods is not directly associated with addressing fluid overload and dyspnea in COPD patients.

5. The nurse is obtaining the medical histories of new clients at a community-based primary care clinic. Which individual has the highest risk for experiencing elder abuse?

Correct answer: C

Rationale: Elder abuse risk is higher in individuals who live with relatives and are on a fixed income as these factors can contribute to vulnerability. Living with relatives may expose the individual to potential abusive situations within the family dynamics. Additionally, being on a fixed income may limit financial independence and increase dependency on others, potentially leading to financial abuse. The other options, such as living alone and volunteering, residing in a nursing home, or living with a long-term spouse, do not inherently pose the same level of risk factors for elder abuse as living with relatives on a fixed income.

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