A child who weighs 25 kg receives a prescription for isoniazid 10 mg/kg/day by mouth once a day.
The bottle is labeled "isoniazid Oral Solution, USP 50 mg per 5 mL.”. How many mL should the nurse administer? (Enter numerical value only.
If rounding is required, round to the nearest whole number.)
The Correct Answer is ["25"]
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Gathering supplies for an IV infusion is essential in many cases but not the priority here. Measuring abdominal circumference helps determine if there is abdominal distention indicating a possible blockage, which could suggest a condition like Hirschsprung's disease. Early detection and appropriate intervention are critical, making it the first action.
Choice B rationale
Preparing for anorectal surgery may be necessary if a diagnosis like Hirschsprung’s disease or imperforate anus is confirmed. However, the initial priority is to assess for signs of abdominal distention by measuring the circumference, providing crucial information for the next steps.
Choice D rationale
Monitoring strict urinary output is important for overall fluid balance and identifying complications related to fluid shifts. However, in this scenario, the priority action is to assess for abdominal distention, a potential sign of a serious underlying condition causing the symptoms observed in the infant.
Correct Answer is B
Explanation
Choice A rationale
Rooting is a reflex that helps a baby find and latch onto the breast or bottle for feeding. While the rooting reflex may diminish as the baby grows, it is not the primary indicator for introducing solid foods. Other developmental milestones are more relevant for this transition.
Choice B rationale
When a baby starts opening their mouth in response to the sight or smell of food, it indicates a readiness to try solid foods. This behavior shows that the baby is interested in and capable of learning to eat from a spoon, which is a key step in the introduction of solids.
Choice C rationale
Awakening once for nighttime feedings is common for infants and does not necessarily indicate readiness for solid foods. Nighttime awakenings can occur for various reasons, including hunger, but other developmental signs should be considered for introducing solids.
Choice D rationale
Giving up a bottle for a cup is a milestone that typically occurs later in infancy or toddlerhood. It is not directly related to the introduction of solid foods, which generally begins around 4 to 6 months of age based on the child's developmental readiness and interest in food.
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