Primary care provider orders cefazolin (Kefrol) 30 mg/kg in two divided doses per day for a child with pneumonia. Child weighs 20 lb. If the available oral suspension is 125 mg/5ml how many mls per dose should the child receive?
The Correct Answer is ["5.4"]
Convert the child's weight from pounds (lb) to kilograms (kg):
20 lb × (1 kg / 2.20462 lb) ≈ 9.07 kg
Calculate the total daily dose of cefazolin:
Total daily dose = 30 mg/kg/day × 9.07 kg = 272.1 mg/day
Divide the total daily dose into two equal doses:
Each dose = 272.1 mg / 2 ≈ 136.05 mg
Determine the dose per ml using the available oral suspension concentration:
125 mg/5 ml = 25 mg/ml
Calculate the volume of oral suspension needed for each dose:
Volume per dose = Dose per dose / Concentration per ml
≈ 136.05 mg / 25 mg/ml
≈ 5.44 ml
So, the child should receive approximately 5.44 ml per dose of cefazolin oral suspension.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. A room with a toddler who has pneumonia.
This option is not ideal because both RSV and pneumonia are respiratory infections that can spread to other patients. Placing these two patients together could increase the risk of cross-infection.
B. A private room with reverse isolation.
Reverse isolation is typically used to protect immunocompromised patients from acquiring infections from others. However, in the case of RSV, reverse isolation is not necessary because RSV primarily affects infants and young children who are generally not immunocompromised. Therefore, this option is not appropriate for an infant with RSV.
C. A private room with contact/droplet precautions.
This option is the most appropriate. RSV is primarily spread through respiratory droplets and direct contact with respiratory secretions. Placing the infant in a private room with contact/droplet precautions helps to minimize the risk of transmission to other patients. Healthcare workers and visitors entering the room should adhere to appropriate precautions, including wearing personal protective equipment (PPE) such as masks, gloves, and gowns.
D. A room with an infant who has croup.
Placing an infant with RSV in the same room as an infant with croup is not ideal because both conditions involve respiratory symptoms and may increase the risk of cross-infection.

Correct Answer is B
Explanation
A. Decreased stridor: Stridor is a high-pitched, noisy breathing sound caused by turbulent airflow through a narrowed or partially obstructed airway. In laryngotracheobronchitis, stridor is often present and may worsen with increasing airway obstruction. Therefore, decreased stridor would not be a typical finding associated with airway obstruction in this condition.
B. Increased restlessness: Increased restlessness can be a sign of worsening respiratory distress and impending airway obstruction. As the child struggles to breathe, they may become increasingly agitated and restless, indicating the need for prompt intervention to ensure adequate oxygenation.
C. Decreased heart rate: Decreased heart rate (bradycardia) is not typically associated with airway obstruction in laryngotracheobronchitis. In fact, the heart rate may increase as a compensatory response to hypoxia and respiratory distress.
D. Decreased temperature: Changes in temperature are not typically associated with airway obstruction in laryngotracheobronchitis. The focus of monitoring in this condition is primarily on respiratory distress and signs of worsening airway obstruction.
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