HESI LPN
HESI CAT Exam Quizlet
1. An 8-year-old child who weighs 60 pounds receives an order for Polycilin (Ampicillin) suspension 25 mg/kg/day divided into a dose every 8 hours. The medication is labeled '125 mg/5 ml'. How many ml should the nurse administer per dose every 8 hours?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Calculate the daily dose first: 60 pounds x 25 mg/kg = 1500 mg/day. Divide by 3 doses = 500 mg/dose. Convert to mL: (500 mg / 125 mg) x 5 ml = 20 ml. However, the question asks for the dose per administration every 8 hours, which is 1/3 of the daily dose. So, the correct calculation should be (20 ml / 3) = 6.67 ml, which rounds to 5 ml. Therefore, the correct answer is 5 ml. Choice B (10 ml) is incorrect because it doesn't consider the frequency of dosing. Choice C (15 ml) is incorrect as it overestimates the dose. Choice D (20 ml) is incorrect as it represents the total daily dose, not the dose per administration every 8 hours.
2. To evaluate the medication’s effectiveness in a client with a respiratory tract infection, which laboratory values should the nurse monitor?
- A. White blood cell (WBC) count
- B. Sputum culture and sensitivity
- C. Droplet precautions
- D. Protective environment
Correct answer: A
Rationale: The correct answer is A: White blood cell (WBC) count. Monitoring the WBC count helps assess the overall response to infection and the effectiveness of the antibiotic. Sputum culture and sensitivity (choice B) are also important to confirm if the antibiotic is targeting the specific pathogen. Choices C and D, droplet precautions and protective environment, are not laboratory values but rather infection control measures that do not directly evaluate the medication's effectiveness in treating the infection.
3. The nurse receives change of shift report on a group of clients for the upcoming shift. A client with which condition requires the most immediate attention by the nurse?
- A. Gunshot wound three hours ago with dark drainage of 2 cm on the dressing
- B. Mastectomy 2 days ago with 50 ml bloody drainage in the Jackson-Pratt drain
- C. Collapsed lung after a fall 8 hours ago with 100 ml blood in the chest tube collection container
- D. Abdominal-perineal resection 2 days ago with no drainage on dressing and fever and chills
Correct answer: C
Rationale: A collapsed lung with significant blood accumulation requires immediate attention to prevent respiratory compromise. Option A may also require attention, but the immediate threat to airway and breathing in option C takes precedence over the others. Option B has expected drainage after a mastectomy, and option D's fever and chills, while concerning, do not pose an immediate life-threatening risk as in option C.
4. A client with intestinal obstructions has a nasogastric tube to low intermittent suction and is receiving an IV of lactated Ringer’s at 100 ml/H. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 900 mL in the last 24 hours
- B. Serum potassium level of 3.1 mEq/L or mmol/L (SI)
- C. Increased blood urea nitrogen (BUN)
- D. 24-hour intake at the current infusion rate
Correct answer: B
Rationale: The most crucial finding to report to the healthcare provider in this scenario is a serum potassium level of 3.1 mEq/L. Hypokalemia can lead to serious complications, including cardiac issues. Gastric output, increased BUN, and monitoring the 24-hour intake are essential but do not pose an immediate risk as hypokalemia does in this situation.
5. A client who is diagnosed with amyotrophic lateral sclerosis (ALS) is having difficulty swallowing and articulating words. Which intervention is most important to include in this client’s plan of care?
- A. Encourage speaking slowly and articulating words
- B. Sit upright and flex chin forward while swallowing
- C. Position a communication board at the bedside
- D. Provide feeding utensils with large grip handles
Correct answer: B
Rationale: The correct intervention for a client with ALS experiencing difficulty swallowing and articulating words is to sit upright and flex the chin forward while swallowing. This position helps manage dysphagia associated with ALS by facilitating the swallowing process. Encouraging speaking slowly and articulating words (Choice A) may be helpful for speech clarity but does not address the swallowing issue. Positioning a communication board (Choice C) would not directly address the swallowing difficulty. Providing feeding utensils with large grip handles (Choice D) is not the priority intervention for managing dysphagia in ALS.
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