Difficulty: Medium
Average Score: 69%
Simulated
A nurse is preparing to administer amoxicillin 30 mg/kg/day divided equally every 12 hours to a toddler who weighs 33 lbs. Available is amoxicillin 200 mg/5 mL suspension. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct answer
5.6
Rationale
Correct Answer: A nurse should administer 5.6 mL per dose. To calculate this, first convert the toddler's weight from pounds to kilograms (33 lbs ├À 2.2 = 15 kg). Then, calculate the total daily dose (30 mg/kg/day x 15 kg = 450 mg/day). Since the dose is divided equally every 12 hours, the nurse should give 225 mg per dose. Next, calculate how many mL is needed for 225 mg (225 mg ├À 200 mg/5 mL = 2.25 mL). Finally, round to the nearest tenth, yielding 5.6 mL per dose.
Incorrect Choices Explanation:
B: Incorrect calculation.
C: Incorrect conversion of weight.
D: Incorrect division of total daily dose.
E: Incorrect calculation of mL needed.
F: Incorrect rounding.
G: Incorrect conversion factor used.
Incorrect Choices Explanation:
B: Incorrect calculation.
C: Incorrect conversion of weight.
D: Incorrect division of total daily dose.
E: Incorrect calculation of mL needed.
F: Incorrect rounding.
G: Incorrect conversion factor used.