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. A young adult female presents at the emergency center with acute lower abdominal pain. Which assessment finding is most important for the nurse to report to the healthcare provider?
- A. Pain scale rating of 9 on a 0-10 scale
- B. Last menstrual period was 7 weeks ago
- C. Reports white curdy vaginal discharge
- D. History of irritable bowel syndrome (IBS)
Correct answer: B
Rationale: The correct answer is B. A missed menstrual period could indicate a possible pregnancy-related issue, requiring urgent evaluation. Assessing the menstrual history in a female of reproductive age takes precedence in this scenario. Choice A, the pain scale rating, is important but not as urgent as evaluating the menstrual history. Choice C, reporting white curdy vaginal discharge, may suggest a vaginal infection but is not as critical as ruling out a potential pregnancy. Choice D, the history of irritable bowel syndrome, is relevant but not as crucial as determining pregnancy-related issues in this context.
3. A 37-year-old client diagnosed with chronic kidney disease (CKD) is being treated for renal osteodystrophy. Which nursing diagnosis is most likely to be included in this client’s plan of care?
- A. High risk for infection related to subclavian catheter
- B. High risk of injury related to ambulation
- C. Knowledge deficit related to a high-protein diet
- D. Hygiene self-care deficit related to uremic frost
Correct answer: D
Rationale: The correct answer is D. Uremic frost is a condition in which urea and other waste products are excreted through the skin, leaving a powdery residue. This indicates poor hygiene and self-care, common issues in patients with CKD and renal osteodystrophy. Proper hygiene measures are essential to prevent complications. Choices A, B, and C are less likely to be included in the plan of care for a CKD patient with renal osteodystrophy. Choice A is more related to a vascular access issue, choice B is more related to mobility concerns, and choice C is more related to dietary education.
4. The nurse is planning care for a family whose children did not receive childhood immunizations. After one of the children contracted mumps, the father is diagnosed with orchitis. Which intervention should be included in the father's plan of care?
- A. Use of bedrest with scrotal support
- B. Administration of antibiotics for 10 days
- C. Applying heat to promote the healing process
- D. Using an ice pack to reduce scrotal pain
Correct answer: A
Rationale: For orchitis, the recommended intervention is bedrest with scrotal support. This helps reduce swelling and discomfort in the scrotum. Antibiotics are generally not required for viral orchitis, so administering antibiotics for 10 days (Choice B) is not indicated. Applying heat (Choice C) may worsen swelling and should be avoided. Using an ice pack (Choice D) is not the preferred method for managing orchitis; it may not be as effective as providing support and rest for the scrotum.
5. When assessing a client several hours after surgery, the nurse observes that the client grimaces and guards the incision while moving in bed. The client is diaphoretic, has a radial pulse rate of 110 beats/min, and a respiratory rate of 35 breaths/min. What assessment should the nurse perform first?
- A. Apical heart rate
- B. IV site and fluids
- C. Pain scale
- D. Temperature
Correct answer: C
Rationale: The client’s grimacing and guarding suggest pain; assessing the pain scale is crucial for addressing the discomfort. Pain management is a priority to ensure the client's well-being and comfort. Checking the apical heart rate, IV site and fluids, or temperature can be important but addressing the client's pain takes precedence in this scenario. The elevated pulse rate and respiratory rate could be indicative of pain, making the pain scale assessment essential to guide appropriate interventions.
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