HESI LPN
HESI Fundamentals Study Guide
1. The LPN/LVN mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min to a client weighing 182 pounds. Using a drip factor of 60 gtt/ml, how many drops per minute should the client receive?
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To calculate the drops per minute for the client, first, convert the weight from pounds to kilograms by dividing 182 by 2.2, which equals 82.72 kg. Then, calculate the dose in mcg/min by multiplying the weight in kg by the rate (82.72 kg * 5 mcg/kg/min = 413.6 mcg/min). Next, convert 50 mg to mcg (50 mg * 1000 = 50,000 mcg). Divide the total mcg (50,000 mcg) by the dose per minute (413.6 mcg/min) to get approximately 121 gtt/min. However, since the drip factor is 60 gtt/ml, the correct answer is 124 gtt/min, ensuring the accurate administration rate of the medication. Therefore, choice 'D' is the correct answer. Choices 'A', 'B', and 'C' are incorrect as they do not accurately reflect the calculated drops per minute based on the given information.
2. A client is on bed rest. Which of the following interventions should the nurse plan to implement?
- A. Encourage the client to perform antiembolic exercises every 2 hours.
- B. Instruct the client to cough and deep breathe every 4 hours.
- C. Restrict the client’s fluid intake.
- D. Reposition the client every 4 hours.
Correct answer: A
Rationale: To prevent complications associated with prolonged bed rest, encouraging the client to perform antiembolic exercises every 2 hours is essential. These exercises help promote circulation and prevent blood clots. Instructing the client to cough and deep breathe every 4 hours is beneficial for respiratory function, but it is not as critical as antiembolic exercises. Repositioning the client every 4 hours helps prevent pressure ulcers and maintain skin integrity. Restricting fluid intake is not recommended, as hydration is important for overall health and well-being, especially for clients on bed rest.
3. A healthcare professional is planning to obtain the vital signs of a 2-year-old child who is experiencing diarrhea and who might have a right ear infection. Which of the following routes should the healthcare professional use to obtain the temperature?
- A. Temporal
- B. Oral
- C. Rectal
- D. Axillary
Correct answer: C
Rationale: In a 2-year-old child with diarrhea and a possible ear infection, rectal temperature measurement is the most accurate reflection of core body temperature. This method provides the most reliable reading, especially in young children, as it closely reflects the core body temperature. Oral temperature may not be accurate due to the child's recent diarrhea, which can affect oral readings. Axillary temperature may not be as accurate as rectal temperature in this case. Temporal temperature measurement, although non-invasive, may not provide the most accurate core body temperature reading, especially in a child with a potential ear infection.
4. The healthcare professional is evaluating the body alignment of a patient in the sitting position. Which observation will indicate a normal finding?
- A. The edge of the seat is making contact with the popliteal space.
- B. Both feet are supported on the floor with ankles flexed.
- C. The body weight is solely on the buttocks.
- D. The arms hang comfortably at the sides.
Correct answer: B
Rationale: In a normal sitting position, both feet should be supported on the floor with the ankles comfortably flexed. This position helps in maintaining stability and proper alignment. Choice A is incorrect because the edge of the seat pressing against the popliteal space may cause discomfort and is not indicative of proper alignment. Choice C is incorrect as the body weight should be evenly distributed for proper alignment and comfort, not solely on the buttocks. Choice D is incorrect as the position of the arms alone does not indicate proper body alignment in the sitting position; proper arm positioning is important for comfort but not a key indicator of body alignment.
5. A client with a history of seizures is prescribed phenytoin (Dilantin). What side effect should the healthcare provider report immediately?
- A. Increased appetite
- B. Dry mouth
- C. Nausea and vomiting
- D. Gingival hyperplasia
Correct answer: D
Rationale: Gingival hyperplasia is a significant side effect associated with phenytoin therapy. It is characterized by an overgrowth of gum tissue, which can lead to issues such as difficulty in speaking, eating, and maintaining proper oral hygiene. This condition can progress rapidly and may require immediate intervention by the healthcare provider to prevent further complications. Increased appetite, dry mouth, and nausea/vomiting are common side effects of various medications, but they are not as urgent or serious as gingival hyperplasia in a client taking phenytoin.
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