HESI LPN
HESI Fundamentals 2023 Test Bank
1. A child weighing 20 kg has a new prescription for cefoxitin at 80 mg/kg/day administered intravenously every 6 hours. How much cefoxitin should be administered with each dose?
- A. 400 mg
- B. 200 mg
- C. 1600 mg
- D. 100 mg
Correct answer: A
Rationale: To determine the amount of cefoxitin to be administered with each dose, first, calculate the total daily dose by multiplying the child's weight (20 kg) by the prescribed dose (80 mg/kg/day): 80 mg/kg/day × 20 kg = 1600 mg/day. Since the medication is administered every 6 hours (4 doses/day), divide the total daily dose by the number of doses: 1600 mg / 4 = 400 mg. Therefore, each dose should be 400 mg. Choice B (200 mg) is incorrect because it is half the calculated dose. Choice C (1600 mg) is incorrect as it represents the total daily dose, not the dose per administration. Choice D (100 mg) is incorrect as it is a quarter of the calculated dose.
2. During a family assessment, a nurse is interviewing a family composed of a husband, a wife, and three children. One child is biological from this marriage, and the other two are from the wife’s previous marriage. How should the nurse identify this family form?
- A. Extended
- B. Blended
- C. Nuclear
- D. Alternative
Correct answer: B
Rationale: The correct answer is 'Blended.' This family is considered a blended family because it consists of children from previous marriages, along with the biological child of the current marriage. Choice A ('Extended') refers to a family that includes relatives beyond the nuclear family, such as grandparents or aunts/uncles. Choice C ('Nuclear') typically consists of a husband, wife, and their biological children only. Choice D ('Alternative') does not accurately describe the family structure presented in the scenario.
3. When caring for a client receiving warfarin sodium (Coumadin), which lab test would the nurse monitor to determine therapeutic response to the drug?
- A. Bleeding time
- B. Coagulation time
- C. Prothrombin time
- D. Partial thromboplastin time
Correct answer: C
Rationale: The correct answer is C: Prothrombin time (PT). Prothrombin time is monitored to assess the therapeutic response to warfarin therapy. Warfarin works by inhibiting vitamin K-dependent clotting factors, which prolongs the PT. Monitoring PT helps determine if the client's blood is clotting within the desired therapeutic range. Choices A, B, and D are incorrect because bleeding time, coagulation time, and partial thromboplastin time are not specifically used to monitor the therapeutic response to warfarin. Bleeding time assesses platelet function, coagulation time is a general term and not a specific test, and partial thromboplastin time is more relevant in monitoring heparin therapy, not warfarin.
4. The nurse is caring for a client who is receiving 24-hour total parenteral nutrition (TPN) via a central line at 54 ml/hr. When initially assessing the client, the nurse notes that the TPN solution has run out and the next TPN solution is not available. What immediate action should the nurse take?
- A. Infuse normal saline at a keep-vein-open rate.
- B. Discontinue the IV and flush the port with heparin.
- C. Infuse 10% dextrose and water at 54 ml/hr.
- D. Obtain a stat blood glucose level and notify the healthcare provider.
Correct answer: C
Rationale: Infusing 10% dextrose and water at 54 ml/hr is the correct action to prevent hypoglycemia until the next TPN solution becomes available. This solution will help maintain the client's glucose levels. Infusing normal saline at a keep-vein-open rate (Choice A) is not appropriate for maintaining glucose levels and would not address the nutritional needs provided by TPN. Discontinuing the IV and flushing the port with heparin (Choice B) is unnecessary and not indicated in this situation as the client still needs fluid and nutrition. Obtaining a stat blood glucose level and notifying the healthcare provider (Choice D) can be done later but is not the immediate action required when the TPN solution has run out.
5. A healthcare professional is assessing a client’s oculomotor nerve functions. Which of the following actions should the healthcare professional take?
- A. Check the client’s pupillary reaction to light
- B. Ask the client to read print from the Snellen chart
- C. Ask the client to identify different scents
- D. Use cotton to lightly touch the client’s cornea
Correct answer: A
Rationale: Checking the client’s pupillary reaction to light is a key assessment to evaluate the oculomotor nerve function. The oculomotor nerve controls the pupil's constriction response to light. Choices B, C, and D are incorrect because testing vision with a Snellen chart, identifying scents, or touching the cornea are not specific assessments for oculomotor nerve function.
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