A nurse is preparing to administer amoxicillin 80 mg/kg/day to divide equally every 8 hr to a preschooler who weighs 33 lb. Available is amoxicillin oral suspension 250 mg/5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["8"]
Convert the child's weight from pounds to kilograms:
- 33 lb / 2.2 = 15 kg
Calculate the total daily dose of amoxicillin:
- 80 mg/kg/day 15 kg = 1200 mg/day
Divide the total daily dose by the number of doses per day:
- 1200 mg/day / 3 doses/day = 400 mg/dose
Determine the volume of amoxicillin suspension needed for one dose:
- Available concentration: 250 mg/5 mL
- To find the volume for one dose: (400 mg) / (250 mg/5 mL) = 8 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Pinto beans are an excellent source of protein but are considered an incomplete protein because they lack some essential amino acids. Combining them with other plant-based foods (e.g., ricE. can create a complete protein.
B. Eggs are a complete protein source, meaning they contain all nine essential amino acids required for growth and development. They are an ideal protein source for preschoolers.
C. Broccoli is a nutritious vegetable but is not a significant source of protein. It provides fiber, vitamins, and minerals but does not contain all essential amino acids.
D. Peanut butter is high in protein but is also an incomplete protein. Like beans, it must be combined with complementary proteins, such as whole grains, to provide all essential amino acids.
Correct Answer is A
Explanation
A. Holds arms out to be picked up is correct. At 3 months of age, infants typically begin to display social behaviors such as holding their arms out to be picked up. This is an early sign of attachment and recognition of caregivers.
B. Rolls from back to side is incorrect. Rolling from back to side usually occurs around 4 to 5 months, not at 3 months. Infants at 3 months may start to push with their arms during tummy time but typically cannot roll yet.
C. Displays fear toward strangers is incorrect. Fear of strangers typically develops around 6 to 8 months of age, so a 3-month-old infant would not yet exhibit stranger anxiety.
D. Able to hold a rattle is incorrect. At 3 months, infants may begin to grasp objects but are not yet able to hold them consistently. Fine motor skills, including voluntary grasping, typically develop between 4 to 6 months.
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