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?
- A. 18
- B. 27
- C. 36
- D. 45
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 administers an oral antiviral to a client with shingles. Which finding is most important for the nurse to report to the healthcare provider?
- A. Decreased white blood cell count
- B. Pruritus and muscle aches
- C. Elevated liver function tests
- D. Vomiting and diarrhea
Correct answer: C
Rationale: The correct answer is C: Elevated liver function tests. When administering antivirals, especially orally, monitoring liver function tests is crucial as it may indicate liver toxicity. This finding should be reported promptly to the healthcare provider to prevent further complications. Choice A, decreased white blood cell count, may be expected with certain antivirals but is not the most critical finding in this scenario. Pruritus and muscle aches (choice B) are common side effects of antivirals and do not require immediate reporting. Vomiting and diarrhea (choice D) are also common side effects that may not be as concerning as elevated liver function tests.
3. The nurse is conducting intake interviews of children at a city clinic. Which child is most susceptible to contracting lead poisoning?
- A. An adolescent who works part-time in a paint factory
- B. A 2-year-old who plays on aging outdoor playground equipment
- C. A 10-year-old who has Type 1 diabetes mellitus
- D. An 8-year-old who lives in a housing project
Correct answer: B
Rationale: Children playing on aging playground equipment are at higher risk of lead poisoning due to potential exposure from old paint. This is because deteriorating paint on older playground equipment may contain lead, which can be ingested by young children. Choices A, C, and D do not directly involve potential exposure to lead paint, making them less susceptible to lead poisoning compared to a child playing on aging playground equipment.
4. The charge nurse of a cardiac telemetry unit is assigning client care to a registered nurse (RN) and a practical nurse (PN). Which client should be assigned to the RN?
- A. One day after a permanent pacemaker insertion, a client's telemetry monitor shows a pacer rhythm.
- B. Two hours after undergoing cardioversion, a client's telemetry monitor shows a normal sinus rhythm.
- C. A client started on carvedilol the previous day for heart failure has controlled atrial fibrillation.
- D. Four hours after admission, a client with syncope shows complete heart block on the telemetry monitor.
Correct answer: D
Rationale: The correct answer is D because complete heart block is a critical condition that requires immediate assessment and management by a registered nurse (RN). In complete heart block, there is a significant conduction disturbance that can lead to serious complications. The RN is better equipped to handle such complex and potentially life-threatening situations. Choices A, B, and C involve less critical conditions that can be managed by a practical nurse (PN) under the supervision of the RN. Therefore, assigning the client with complete heart block to the RN ensures prompt and appropriate intervention.
5. A client is being treated for minor injuries following an automobile accident in which the only other passenger was killed. The client asks the nurse, 'Is my friend who was in the car with me ok?' What response is best for the nurse to provide?
- A. I am sorry, but your friend was killed in the accident.
- B. Right now you need to concentrate on getting well.
- C. Was the passenger in the car your friend?
- D. I think your friend is going to be all right.
Correct answer: A
Rationale: The correct answer is A: 'I am sorry, but your friend was killed in the accident.' In this situation, honesty and compassion are essential. The nurse should provide the client with truthful information, acknowledging the client's need to know the reality of the situation. Choice B is dismissive and does not address the client's inquiry directly. Choice C is a deflecting question and does not offer the direct information the client is seeking. Choice D provides false reassurance, which is not appropriate in this circumstance where the reality needs to be communicated.
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