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. A client who is scheduled to have surgery in two hours tells the nurse, 'My doctor was here and used a lot of big words about the surgery, then asked me to sign a paper.' What action should the nurse take?
- A. Reassure the client that pre-surgery anxiety is a normal experience
- B. Explain the surgery in clear terms that the client can understand
- C. Call the surgeon back to clarify the information with the client
- D. Redirect the client’s thoughts by teaching relaxation techniques
Correct answer: B
Rationale: The correct action for the nurse to take in this situation is to explain the surgery to the client in clear terms that they can understand. This will help alleviate the client's anxiety and ensure they are well-informed about the procedure they are about to undergo. Choice A is incorrect because while reassurance is important, it does not address the client's specific concern about understanding the surgery. Choice C is not the initial step; the nurse should first attempt to clarify the information themselves. Choice D is not the priority when the client is seeking clarification about the surgery.
3. What explanation is best for the nurse to provide a client who asks the purpose of using the log-rolling technique for turning?
- A. Working together can decrease the risk of back injury.
- B. The technique is intended to maintain straight spinal alignment.
- C. Using two or three people increases client safety.
- D. Turning instead of pulling reduces the likelihood of skin damage.
Correct answer: B
Rationale: The correct answer is B: 'The technique is intended to maintain straight spinal alignment.' Log-rolling is a technique used to move a person as a single unit to maintain the alignment of the spinal column. This is crucial to prevent spinal cord injury, especially in clients with suspected spine fractures. Choice A is incorrect because log-rolling focuses on spinal alignment, not just decreasing back injury risks. Choice C is incorrect because the number of people involved is not the primary purpose of log-rolling, which is maintaining spinal alignment. Choice D is incorrect because while turning instead of pulling may help prevent skin damage, the primary goal of log-rolling is to protect the spine, not the skin.
4. A child with heart failure (HF) is taking digitalis. Which sign indicates to the nurse that the child may be experiencing digitalis toxicity?
- A. Tachycardia
- B. Dyspnea
- C. Vomiting
- D. Muscle cramps
Correct answer: C
Rationale: Vomiting is a common sign of digitalis toxicity and should be closely monitored. While tachycardia is a common sign of heart failure, it is not typically associated with digitalis toxicity (Choice A). Dyspnea (Choice B) and muscle cramps (Choice D) are not specific signs of digitalis toxicity and can be present in other conditions. Therefore, the presence of vomiting should raise concerns about digitalis toxicity in the child with heart failure.
5. Which intervention should the nurse include in a long-term plan of care for a client with Chronic Obstructive Pulmonary Disease (COPD)?
- A. Reduce risk factors for infection
- B. Administer high-flow oxygen during sleep
- C. Limit fluid intake to reduce secretions
- D. Use diaphragmatic breathing to achieve better exhalation
Correct answer: D
Rationale: The correct answer is D. Diaphragmatic breathing is a beneficial intervention for clients with COPD as it helps improve breathing efficiency and manage symptoms by promoting better air exchange in the lungs. It aids in achieving better exhalation, reducing air trapping, and enhancing overall lung function. Choices A, B, and C are incorrect. While reducing risk factors for infection is important for overall health, it is not a specific long-term intervention for COPD. Administering high-flow oxygen during sleep may be necessary in some cases but is not typically a long-term strategy for managing COPD. Limiting fluid intake to reduce secretions is not recommended as hydration is essential for individuals with COPD to maintain optimal respiratory function and prevent complications like mucus plugs.
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