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. The client has a nasogastric (NG) tube in place for decompression. What action should the LPN/LVN take to maintain patency of the NG tube?
- A. Irrigate the tube with normal saline every shift.
- B. Check the tube placement by auscultation.
- C. Secure the tube to the client's gown.
- D. Flush the tube with 5 mL of sterile water before and after medication administration.
Correct answer: A
Rationale: To maintain patency of the NG tube, it is essential to irrigate the tube with normal saline every shift. This action helps prevent clogging and ensures that the tube remains clear for effective decompression. Checking tube placement by auscultation (Choice B) is important for verifying correct placement but does not directly impact patency. Securing the tube to the client's gown (Choice C) is crucial for safety and comfort but is not directly related to maintaining patency. Flushing the tube with sterile water before and after medication administration (Choice D) is not the recommended method for maintaining patency of an NG tube, as normal saline is the appropriate solution for this purpose.
3. The patient is receiving chemotherapy for breast cancer. Which of the following laboratory values would be most important to monitor?
- A. White blood cell count
- B. Hemoglobin level
- C. Serum creatinine
- D. Blood glucose level
Correct answer: A
Rationale: Monitoring the white blood cell count is crucial when a patient is undergoing chemotherapy for breast cancer. Chemotherapy can lead to neutropenia, a condition of low white blood cell count, which significantly increases the risk of infections. Monitoring white blood cell count helps healthcare providers intervene promptly to prevent severe infections. Hemoglobin level, while important in assessing oxygen-carrying capacity, is not the priority in this scenario. Serum creatinine and blood glucose levels are not directly impacted by chemotherapy for breast cancer.
4. During an abdominal assessment for an adult client, what is the correct sequence of steps?
- A. Inspect, Auscultate, Percuss, Palpate
- B. Palpate, Percuss, Inspect, Auscultate
- C. Auscultate, Inspect, Percuss, Palpate
- D. Percuss, Palpate, Inspect, Auscultate
Correct answer: A
Rationale: The correct sequence for an abdominal assessment in an adult client is to first Inspect the abdomen for any visible abnormalities, then Auscultate to listen for bowel sounds, followed by Percussion to assess for organ size and presence of fluid or masses, and finally Palpation to feel for tenderness, masses, or organ enlargement. Choice A, 'Inspect, Auscultate, Percuss, Palpate,' is the correct sequence for an abdominal assessment. Choices B, C, and D are incorrect because they do not follow the recommended sequence of assessment. Palpation should be the last step as it can potentially alter bowel sounds and percussion findings if done before. This deviation can lead to missing important findings or inaccurate assessment results.
5. The nurse is preparing to administer a subcutaneous injection of insulin to a client with diabetes. What is the best site for the nurse to select for this injection?
- A. Ventrogluteal site
- B. Dorsogluteal site
- C. Deltoid site
- D. Abdomen
Correct answer: D
Rationale: The correct answer is 'D: Abdomen.' The abdomen is the best site for insulin injections as it provides a larger area with consistent absorption rates due to the high vascularity of the area. The subcutaneous tissue in the abdomen allows for a more predictable and consistent absorption of insulin compared to other sites. Ventrogluteal and dorsogluteal sites are not commonly used for insulin injections due to the risk of hitting the sciatic nerve or causing tissue damage. The deltoid site is more commonly used for intramuscular injections rather than subcutaneous injections like insulin.
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