A child weighing 18 pounds has been prescribed amoxicillin at a dosage of 25 mg/kg/day. The medication is to be administered orally in two divided doses every 12 hours.
The label on the bottle reads, “Amoxicillin for Oral Suspension, USP 400 mg per 5 mL.”. How many mL should the nurse administer for each dose? (Provide a numerical value only.
If rounding is required, round to the nearest tenth.)
The Correct Answer is ["1.3"]
Step 1: First, convert the child’s weight from pounds to kilograms. Since 1 pound is approximately 0.45 kilograms, an 18-pound child weighs about 8.16 kilograms (18 pounds × 0.45 kg/pound).
Step 2: Next, calculate the total daily dosage of amoxicillin. The prescribed dosage is 25 mg/kg/day. Therefore, the total daily dosage is 204 mg/day (8.16 kg × 25 mg/kg).
Step 3: Since the medication is to be administered in two divided doses every 12 hours, each dose should be half of the total daily dosage. Therefore, each dose is 102 mg (204 mg/day ÷ 2).
Step 4: Finally, calculate the volume of the suspension to be administered for each dose. The label on the bottle reads, “Amoxicillin for Oral Suspension, USP 400 mg per 5 mL.”. Therefore, each milliliter of the suspension contains 80 mg of amoxicillin (400 mg/5 mL). To administer a dose of 102 mg, the nurse should administer approximately 1.275 mL (102 mg ÷ 80 mg/mL). If rounding is required, round to the nearest tenth.
Therefore, the nurse should administer 1.3 mL for each dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Recognizing most letters and numbers is a skill that typically develops later in childhood, not at 3 years old.
Choice B rationale
Using 1-word sentences is a skill that is typically mastered by 2 years old. A 3-year-old child is usually able to speak in longer sentences.
Choice C rationale
Speaking in simple sentences with four or more words is a normal developmental milestone for a 3-year-old child.
Choice D rationale
Using gestures with 1 to 2-word sentences is a skill that is typically mastered by 2 years old. A 3-year-old child is usually able to speak in longer sentences.
Correct Answer is D
Explanation
The correct answer is choice d. Positive rapid strep test of the oropharynx.
Choice A rationale:
Blood pressure of 88/50 mmHg is lower than normal but not typically associated with acute glomerulonephritis. High blood pressure is more common in this condition.
Choice B rationale:
Weight loss is not a typical symptom of acute glomerulonephritis. Instead, fluid retention and weight gain are more common due to edema.
Choice C rationale:
A maculopapular rash over the trunk is not commonly associated with acute glomerulonephritis. This condition usually presents with symptoms like hematuria, proteinuria, and edema.
Choice D rationale:
A positive rapid strep test of the oropharynx indicates a recent streptococcal infection, which is a common cause of acute glomerulonephritis. Reporting this finding is crucial for appropriate management.
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