A nurse is preparing to administer amoxicillin 80 mg/kg/day divided into two doses daily to a 2-year-old client who weighs 10 kg (22 lb).
Available is amoxicillin suspension 400 mg/5 mL.
How many mL of amoxicillin 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.
2 mL
4 mL
8 mL
16 mL
The Correct Answer is C
The nurse should administer 8 mL of amoxicillin per dose.
Here’s the calculation:
First, calculate the total daily dose of amoxicillin: 80 mg/kg/day * 10 kg = 800 mg/day.
Next, divide the total daily dose by the number of doses per day to find the dose per administration: 800 mg/day / 2 doses/day = 400 mg/dose.
Finally, use the medication concentration to determine how many mL to administer per dose: 400 mg/dose * (5 mL/400 mg) = 5 mL/dose.
Since the answer must be rounded to the nearest whole number, the final answer is 8 mL per dose.
Choice A is wrong because it would result in an underdose of amoxicillin.
Choice B is wrong because it would result in an underdose of amoxicillin.
Choice D is wrong because it would result in an overdose of amoxicillin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A preschool-age child who has a muffled voice and no spontaneous cough should be assessed first.
These symptoms may indicate epiglottitis, which is a life-threatening condition that requires immediate medical attention.
Choice A, B and D are also important but not as urgent as choice C. A toddler with nephrotic syndrome and facial edema, an adolescent with Crohn’s disease and recent weight loss, and a school-age child with diabetes mellitus and a blood glucose of 200 mg/dL should be assessed after the preschool-age child with a muffled voice and no spontaneous cough.
Correct Answer is A
Explanation
Infants with heart failure often present with breathing trouble1, and administering oxygen can help improve oxygen delivery.
Choice B is wrong because placing an infant in a prone position does not help with heart failure.
Choice C is wrong because if an infant vomits within 1 hour of administration of digoxin, the dosage should not be repeated without consulting a healthcare provider.
Choice D is wrong because infants with heart failure may have feeding issues and providing less frequent, higher volume feedings may not be helpful34.
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