HESI LPN
CAT Exam Practice Test
1. A heparin infusion is prescribed for a client who weighs 220 pounds. After administering a bolus dose of 80 units/kg, the nurse calculates the infusion rate for the heparin sodium at 18 units/kg/hour. The available solution is Heparin Sodium 25,000 units in 5% Dextrose Injection 250 ml. The nurse should program the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: B
Rationale: To calculate the infusion rate, first, find the total dose required per hour, which is the patient's weight (220 pounds) multiplied by the prescribed rate (18 units/kg/hour). This equals 3960 units/hour. Next, determine how many ml of the solution contain 25,000 units; this is 250 ml. Divide the total dose required per hour (3960 units) by the units per ml (25,000 units/250 ml) to find how many ml are needed per hour. This results in 27 ml/hour. Therefore, the nurse should program the infusion pump to deliver 27 ml/hour. Choice A (18) is incorrect as it does not account for the concentration of the heparin solution. Choices C (36) and D (45) are incorrect as they do not reflect the accurate calculations based on the patient's weight and the heparin concentration in the solution.
2. After medicating the client for pain and collecting granules and stones from strained urine, which action is most important for the nurse to implement next?
- A. Send the calculi for laboratory analysis of stone composition.
- B. Evaluate the client for persistent pain.
- C. Assess the clarity of urine.
- D. Encourage high fluid intake to produce urine output of 2L/day.
Correct answer: A
Rationale: Sending the calculi for analysis is crucial in determining the type of stone present. Identifying the stone composition helps in developing an effective treatment plan and preventive measures to avoid future episodes of urolithiasis. This step is essential in providing targeted care for the client. Options B, C, and D are not the most important actions at this point. While evaluating for persistent pain is essential, determining the stone composition takes precedence to guide appropriate interventions.
3. A 70-year-old client is admitted to the hospital after 24 hours of acute diarrhea. To determine fluid status, which initial data is most important for the nurse to obtain?
- A. Usual and current weight
- B. Color and amount of urine
- C. Number and frequency of stools
- D. Intake and output 24 hours prior to admission
Correct answer: A
Rationale: The correct answer is A: Usual and current weight. Weight changes are the most direct indicator of fluid status in a patient with acute diarrhea. Monitoring weight loss or gain can provide crucial information about fluid balance. Option B, color and amount of urine, though important for assessing renal function, is not as direct an indicator of fluid status as weight. Option C, number and frequency of stools, is relevant for assessing the severity of diarrhea but does not provide direct information on fluid status. Option D, intake and output 24 hours prior to admission, does not reflect the current fluid status and may not be accurate in a rapidly changing condition like acute diarrhea.
4. 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.
5. A client receiving chemotherapy has severe neutropenia. Which snack is best for the nurse to recommend to the client?
- A. Plain yogurt sweetened with raw honey
- B. Peanuts in the shell, roasted or unroasted
- C. Aged farmer’s cheese with celery sticks
- D. Baked apples topped with dried raisins
Correct answer: A
Rationale: The correct answer is A: Plain yogurt sweetened with raw honey. This option is the best choice for a client with severe neutropenia undergoing chemotherapy because it is less likely to harbor harmful bacteria, which could cause infections due to the weakened immune system. Peanuts in the shell (choice B) may carry a risk of contamination, while aged farmer's cheese with celery sticks (choice C) and baked apples topped with dried raisins (choice D) may not be as safe as plain yogurt for a client with severe neutropenia.
Similar Questions
Access More Features
HESI LPN Basic
$69.99/ 30 days
- 5,000 Questions with answers
- All HESI courses Coverage
- 30 days access
HESI LPN Premium
$149.99/ 90 days
- 5,000 Questions with answers
- All HESI courses Coverage
- 30 days access