A nurse is preparing to administer ampicillin 50 mg/kg/day divided equally every 6 hr to a child who weighs 30 kg (66 lb). Available is ampicillin oral suspension 125 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 ["15"]
- Calculate the total daily dose based on weight
Total Daily Dose = 50 mg/kg × 30 kg
= 1,500 mg/day
- Divide the total daily dose by the number of doses per day
Doses per day = every 6 hours → 24 ÷ 6
= 4 doses/day
Dose per administration = 1,500 ÷ 4
= 375 mg per dose
- Calculate the volume to administer per dose
Available Concentration: 125 mg/5 mL → 125 mg in 5 mL
Volume to administer = (Dose per Administration ÷ Available Dose) × Volume
= (375 ÷ 125) × 5
= 3 × 5
= 15 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Increased appetite: Increased appetite is not associated with increased intracranial pressure in infants. Changes in ICP more commonly affect feeding tolerance negatively, leading to poor feeding, vomiting, or decreased interest in feeding rather than increased intake.
B. Irritability: Irritability is a common early sign of increased intracranial pressure in infants. Rising pressure causes discomfort and headache-like symptoms that infants cannot verbalize, often presenting as persistent crying, restlessness, or difficulty consoling.
C. Flat fontanel: A flat fontanel is considered a normal finding in infants. Increased intracranial pressure is more likely to cause a bulging or tense fontanel due to increased pressure within the skull.
D. Tachycardia: Tachycardia is not a classic sign of increased intracranial pressure. As ICP worsens, infants may develop bradycardia as part of Cushing’s triad, making tachycardia less indicative of elevated ICP.
Correct Answer is B
Explanation
A. Administer diuretics with the toddler's lunch: Giving diuretics with meals can increase urination, potentially disrupting rest and sleep. Timing medications to avoid frequent nighttime awakenings is important to help the toddler maintain adequate rest.
B. Establish a daily schedule with the toddler and their family: Creating a consistent daily routine helps the toddler anticipate activities and rest periods, reducing fatigue and promoting better sleep. Structured schedules are especially important for children with heart failure to balance activity and rest effectively.
C. Keep the television on in the toddler's room: Continuous television exposure can overstimulate the toddler and interfere with the ability to rest. A calm, quiet environment is more conducive to promoting restorative rest and reducing fatigue in children with heart failure.
D. Allow the toddler to visit the playroom 30 min prior to bedtime: Engaging in stimulating activities immediately before bedtime can make it harder for the toddler to fall asleep. Limiting high-energy play before rest periods supports better sleep and helps manage heart failure-related fatigue.
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