A child who weighs 16 pounds receives a prescription for amoxicillin 25 mg/kg/day by mouth in divided doses every 12 hours.
The bottle is labeled, "Amoxicillin for Oral Suspension, USP 200 mg per 5 mL.”. How many mL should the nurse administer with each dose? (Enter numerical value only.
If rounding is required, round to the nearest tenth.)
The Correct Answer is ["2.3"]
Step 1 is to convert the child's weight from pounds to kilograms. 16 pounds ÷ 2.2 = 7.3 kg.
Step 2 is to calculate the total daily dose in mg. 25 mg/kg × 7.3 kg = 182.5 mg.
Step 3 is to determine the dose per administration, divided by 2 since the dose is given every 12 hours. 182.5 mg ÷ 2 = 91.25 mg.
Step 4 is to convert the dose from mg to mL using the concentration of the medication. 91.25 mg ÷ (200 mg/5 mL) = 91.25 ÷ 40 = 2.3 mL per dose. The answer is 2.3 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["25"]
Explanation
Step 1: Calculate the total daily dose in mg: 25 kg × 10 mg/kg/day = 250 mg/day.
Step 2: Determine how many mL are needed to administer the 250 mg dose: (250 mg ÷ 50 mg) × 5 mL = (5) × 5 mL = 25 mL. Final calculated answer: 25 mL.v
Correct Answer is C
Explanation
Choice A rationale
Diaphragmatic respirations are a normal breathing pattern and do not indicate respiratory distress. In fact, diaphragmatic breathing can be beneficial for patients with respiratory conditions as it helps to maximize lung expansion and improve oxygenation. Therefore, this finding is not indicative of acute respiratory distress in a child with asthma.
Choice B rationale
Bilateral bronchial breath sounds are usually heard over the large airways, such as the trachea and the main bronchi, and are not typically associated with acute respiratory distress. Wheezing or diminished breath sounds would be more indicative of airway obstruction and respiratory distress in a child with asthma.
Choice C rationale
Flaring of the nares is a sign of increased respiratory effort and is commonly seen in children with acute respiratory distress. This indicates that the child is struggling to breathe and is using additional muscles to help with respiration, which is a concerning sign that requires immediate attention.
Choice D rationale
A resting respiratory rate of 35 breaths per minute is elevated for a 3-year-old child but is not the most specific sign of acute respiratory distress. While tachypnea can indicate respiratory distress, other signs, such as nasal flaring, retractions, and cyanosis, are more specific indicators of the severity of the child's condition. .
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