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. After years of struggling with weight management, a middle-aged man is evaluated for gastroplasty. He has experienced difficulty managing his diabetes mellitus and hypertension, but he is approved for surgery. Which intervention is most important for the nurse to include in this client’s plan of care?
- A. Monitor for signs of depression
- B. Apply sequential compression stockings
- C. Provide a wide variety of meal choices
- D. Observe for signs of depression
Correct answer: D
Rationale: Observing for signs of depression is crucial in this patient's plan of care as depression can impact his overall recovery and management post-surgery. Depression is common in individuals struggling with weight management, diabetes mellitus, and hypertension. Monitoring for urinary incontinence (Choice A) is not the priority in this case as the patient is undergoing gastroplasty for weight management, not a urinary issue. Applying sequential compression stockings (Choice B) is important for preventing deep vein thrombosis in immobile patients but is not the priority in this scenario. Providing a wide variety of meal choices (Choice C) is not the most crucial intervention at this stage, as post-gastroplasty dietary restrictions are essential for successful weight management.
3. An infant is receiving penicillin G procaine 220,000 units IM. The drug is supplied as 600,000 units/ml. How many ml should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth)
- A. 0.4
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: Desired dose (220,000 units) / Dose on hand (600,000 units) x Volume of the available dose (1 ml). This results in 0.4 ml to be administered. Choice A is correct. Choice B, C, and D are incorrect as they are not provided.
4. An older client is having photocoagulation for macular degeneration. What intervention should the nurse implement during post-procedure care in the outpatient surgical unit?
- A. Apply bilateral eye patches while sleeping
- B. Use a whiteboard to communicate with the client
- C. Arrange food on the plate in a clockwise order
- D. Verbally identify oneself when entering the room
Correct answer: A
Rationale: The correct intervention is to apply bilateral eye patches while sleeping. This measure helps protect the eyes and support healing following photocoagulation for macular degeneration. Choice B is incorrect as using a whiteboard is not directly related to post-procedure care for this intervention. Choice C is incorrect as arranging food on the plate in a clockwise order is not relevant to the post-procedure care of photocoagulation. Choice D is incorrect as verbally identifying oneself when entering the room is important for communication but not specific to the post-procedure care in this scenario.
5. After receiving a report on an inpatient acute care unit, which client should the nurse assess first?
- A. The client with bowel obstruction due to a volvulus who is experiencing abdominal rigidity
- B. The client who had surgery yesterday and is experiencing a paralytic ileus with absent bowel sounds
- C. The client with an obstruction of the large intestine who is experiencing abdominal distention
- D. The client with a small bowel obstruction who has a nasogastric tube that is draining greenish fluid
Correct answer: A
Rationale: The correct answer is A. Abdominal rigidity in a client with bowel obstruction due to a volvulus indicates possible complications and requires immediate assessment. Choice B is incorrect because although a paralytic ileus with absent bowel sounds is concerning, abdominal rigidity in a client with a volvulus takes priority. Choice C is incorrect as abdominal distention, though indicative of an obstruction, is not as urgent as the sign of abdominal rigidity. Choice D is incorrect as the drainage of greenish fluid from a nasogastric tube in a client with a small bowel obstruction, while concerning, does not present as immediate a threat as the abdominal rigidity in a client with a volvulus.
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