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. The client enters the room of a client with Parkinson’s disease who is taking carbidopa-levodopa. The client is arising slowly from the chair while the unlicensed assistive personnel (UAP) stands next to the chair. What action should the nurse take?
- A. Demonstrate how to help the client move more efficiently
- B. Offer a PRN analgesic to reduce painful movement
- C. Affirm that the client should arise slowly from the chair
- D. Tell the UAP to assist the client in moving more quickly
Correct answer: A
Rationale: The correct action for the nurse to take in this situation is to demonstrate how to help the client move more efficiently. As the client is arising slowly from the chair, providing guidance on proper movement techniques can improve the client's mobility and safety. Offering a PRN analgesic (Choice B) is not relevant to the client's situation as there is no indication of pain. Affirming that the client should arise slowly (Choice C) does not address the need for assistance in improving movement efficiency. Instructing the UAP to assist the client in moving more quickly (Choice D) may compromise the client's safety and is not the appropriate action to take.
3. The nurse is measuring the output of an infant admitted for vomiting and diarrhea. During a 12-hour shift, the infant drinks 4 ounces of Pedialyte, vomits 25 ml, and voids twice. The dry diaper weighs 105 grams. Which computer documentation should the nurse enter in the infant’s record?
- A. Subtract vomitus from 120 ml Pedialyte, then document 95 ml oral intake.
- B. Compare the difference between the infant’s current weight and admission weight.
- C. Document on the flow sheet that the infant voided twice and vomited 25 ml.
- D. Calculate the difference in wet and dry diapers and document 80 ml urine.
Correct answer: C
Rationale: The correct answer is to document on the flow sheet that the infant voided twice and vomited 25 ml. This choice accurately reflects the need for accurate documentation of intake and output, essential for monitoring the infant's hydration status. Choice A is incorrect because the oral intake should not be calculated by subtracting vomitus from the oral intake. Choice B is incorrect because it does not address the specific documentation related to the infant's output. Choice D is incorrect as it focuses on calculating urine output based on diaper weight, which is not the primary concern in this scenario.
4. The nurse is planning care for a client with end-stage lung cancer. The client expresses concern about ongoing pain management. Which nursing action is most appropriate to include in the plan of care?
- A. Consult the healthcare provider for recommendations on pain management
- B. Schedule the client for physical therapy to manage pain
- C. Recommend the client attend a support group for cancer patients
- D. Suggest alternative therapies like acupuncture or massage
Correct answer: A
Rationale: Consulting the healthcare provider for recommendations on pain management is the most appropriate action. The healthcare provider can assess the client's pain, prescribe appropriate medications, and adjust the pain management plan as needed. In end-stage cancer, managing pain often requires pharmacological interventions that the healthcare provider can best provide. Physical therapy (choice B) may not be the primary intervention for pain management in end-stage cancer. While attending a support group (choice C) can provide emotional support, it does not directly address the client's pain management concerns. Suggesting alternative therapies (choice D) is not the initial step; consulting the healthcare provider should come first to ensure a comprehensive and tailored pain management plan.
5. An adult male is admitted to the intensive care unit because he experienced a sudden onset of sharp chest pain and shortness of breath earlier today. Following an emergent pulmonary angiogram, the client is diagnosed with a pulmonary embolism. Which intervention is most important for the nurse to include in this client’s plan of care?
- A. Monitor signs of increased bleeding
- B. Instruct on the use of incentive spirometry
- C. Observe for confusion and restlessness
- D. Administer intravenous opioids for severe pain
Correct answer: A
Rationale: In a patient diagnosed with a pulmonary embolism, the most critical intervention is to monitor for signs of increased bleeding. Pulmonary embolism treatment often involves anticoagulation therapy, which increases the risk of bleeding. Monitoring for signs of bleeding such as bruising, petechiae, hematuria, or gastrointestinal bleeding is essential to prevent complications. Instructing on the use of incentive spirometry can be beneficial for preventing pulmonary complications but is not as urgent as monitoring for bleeding. Observing for confusion and restlessness may indicate hypoxia but is not the most crucial intervention in this scenario. Administering intravenous opioids for severe pain might be necessary but is not the priority compared to monitoring for bleeding, which is directly related to the treatment for pulmonary embolism.
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