HESI LPN
HESI Fundamentals Test Bank
1. A client has a prescription for 5 units of regular insulin and 10 units of NPH insulin to mix together and administer subcutaneously. Determine the correct order of steps for this procedure.
- A. Inject 5 units of air into the bottle of regular insulin
- B. Withdraw the correct dose of NPH insulin from the bottle
- C. Inject 10 units of air into the bottle of NPH insulin
- D. Withdraw the correct dose of regular insulin from the bottle
Correct answer: B
Rationale: The correct order of steps for this procedure is to first inject air into the NPH insulin bottle to prevent vacuum formation. After injecting air into the NPH insulin, the next step is to withdraw the correct dose of regular insulin from its bottle. This sequence ensures that the regular insulin is drawn after the NPH insulin, preventing contamination and ensuring accurate dosing. Therefore, choice B is correct. Choices A, C, and D are incorrect because air should be injected into the NPH insulin first, not the regular insulin, and the doses should be withdrawn in the appropriate order to maintain the integrity and potency of each insulin type.
2. A client will require oxygen therapy at home. Which of the following statements should the nurse identify as an indication that the client understands how to manage this therapy at home?
- A. I'll make sure that, when my friend comes by, they smoke at least 6 feet away from my oxygen tank.
- B. I'll use a cotton blanket if I get chilly while I'm using my oxygen.
- C. I'll check the wires and cables on my oxygen equipment to make sure they are in good working order.
- D. I'll secure my oxygen tank in an upright position to prevent it from being knocked over.
Correct answer: C
Rationale: The correct answer is C. Ensuring the oxygen equipment's wires and cables are in good working order is crucial to prevent sparks in an oxygen-rich environment, which could lead to a fire. Choices A, B, and D are incorrect because smoking near an oxygen tank, using a cotton blanket near oxygen (as cotton is less likely to generate static electricity than wool), and laying the oxygen tank down on the floor pose significant safety risks and are not appropriate practices for managing oxygen therapy at home.
3. The caregiver is teaching parents about the diet for a 4-month-old infant with gastroenteritis and mild dehydration. In addition to oral rehydration fluids, the diet should include
- A. Formula or breast milk
- B. Broth and tea
- C. Rice cereal and apple juice
- D. Gelatin and ginger ale
Correct answer: A
Rationale: The correct answer is A: Formula or breast milk. In infants with gastroenteritis and mild dehydration, it is essential to continue feeding them with formula or breast milk along with oral rehydration fluids to provide adequate nutrition and maintain hydration. Option B, broth and tea, may not provide the necessary nutrients and electrolytes needed for the infant's recovery. Option C, rice cereal and apple juice, can be harsh on the digestive system and may exacerbate diarrhea. Option D, gelatin and ginger ale, do not provide the necessary nutrients and can worsen the condition due to the high sugar content in ginger ale.
4. A nurse at a provider’s office is discussing routine screenings with a 45-year-old female client who has no specific family history of cancer or diabetes mellitus. Which of the following client statements indicates that the client understands how to proceed?
- A. “So I don’t need the colon cancer screening for another 2 or 3 years.”
- B. “For now, I should continue to have a mammogram each year.”
- C. “Because the doctor just performed a Pap smear, I’ll return next year for another one.”
- D. “I had my glucose test last year, so I won’t need it again for 4 years.”
Correct answer: B
Rationale: The correct answer is B. Mammograms are recommended annually for women starting at age 40 or 45. This statement aligns with current guidelines for breast cancer screening in women without specific risk factors. Choice A is incorrect because colon cancer screenings are typically recommended at different intervals. Choice C is incorrect as Pap smears are usually done every 3-5 years based on age and risk factors. Choice D is incorrect because glucose testing is usually recommended more frequently, especially for individuals at risk for diabetes mellitus.
5. A healthcare professional is preparing to administer gentamicin 2 mg/kg via IV bolus to a client who weighs 220 lb. How many mg should the healthcare professional administer?
- A. 200 mg
- B. 100 mg
- C. 160 mg
- D. 180 mg
Correct answer: C
Rationale: To calculate the dosage correctly, the weight in pounds must first be converted to kilograms. 220 lb / 2.2 = 100 kg. Then, multiply the weight in kg by the dosage of 2 mg/kg: 2 mg/kg × 100 kg = 200 mg. Therefore, the correct dosage to administer is 200 mg, which is closest to option A. Option C (160 mg) is incorrect because it does not match the calculated dosage. Options B (100 mg) and D (180 mg) are also incorrect as they do not align with the correct calculation.
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