Appendix G. Pediatric Dosage Calculations

What are the two primary methods for dosing most drugs in children as described in the appendix?

What conversion factor is provided for converting body weight from pounds to kilograms?

Why does the appendix state that a drug order written as 'mg/kg/d' requires clarification?

According to the appendix, why are medication orders written in 'mL' rather than 'mg' not acceptable for pediatric dosing?

What dosing method is commonly used for chemotherapeutic drugs in children?

Based on Example 1, calculate the final dose in mL for a 1-year-old child weighing 22 lb who needs amoxicillin for otitis media. The required dose is 40 mg/kg/day divided BID, and the suspension concentration is 400 mg/5 mL.

For a 5-year-old weighing 18 kg who requires ceftriaxone for meningitis at 100 mg/kg/day, what is the total daily dose in mg?

Based on Example 2, calculate the final volume in mL of ceftriaxone to be given to a 5-year-old weighing 18 kg. The dose required is 100 mg/kg/day given once daily, and the drug concentration is 40 mg/mL.

For a 4-year-old child with leukemia weighing 37 lb and measuring 97 cm tall, what is the first step in calculating a dose of vincristine based on body surface area (BSA)?

Using the data from Example 3 (weight 16.8 kg, height 97 cm), what is the calculated Body Surface Area (BSA)?

A child with a BSA of 0.67 m² requires vincristine at a dose of 2 mg/m². What is the total dose in milligrams?

A dose of 1.34 mg of vincristine is required for a child. If the drug is supplied in a 1 mg/mL concentration, what volume should be administered?

A child weighs 44 lbs. What is the child's weight in kilograms (kg)?

What is the primary reason that diagnostic information is helpful when calculating pediatric drug doses?

A child needs 150 mg of a medication. The available concentration is 125 mg/5 mL. How many mL should be administered?

Calculate the dose in mLs of amoxicillin for otitis media for a 1-year-old child weighing 33 lb. The dose required is 40 mg/kg/day divided BID, and the suspension comes in a concentration of 400 mg/5 mL.

Calculate the dose in mL of ceftriaxone for meningitis for a 6-year-old weighing 20 kg. The dose required is 100 mg/kg/day given IV once daily, and the drug comes prediluted in a concentration of 40 mg/mL.

Calculate the dose in mL of vincristine for a 5-year-old with leukemia weighing 44 lb and who is 100 cm tall. The required dose is 2 mg/m², and the drug comes in a 1 mg/mL concentration.

Before calculating a weight-based dose for a child whose weight is provided in pounds, what is the mandatory first step?

In Example 1, a 1-year-old child weighs 22 lb. What is this weight converted to kilograms (kg)?

In Example 1, for a 10 kg child requiring amoxicillin at 40 mg/kg/day, what is the total daily dose in milligrams (mg)?

In Example 1, if the total daily dose of amoxicillin is 400 mg and it is to be given BID (twice a day), what is the amount for a single dose?

A child weighing 12 kg needs a drug at a dose of 30 mg/kg/day, given in three divided doses (TID). What is the single dose in mg?

In Example 3, a 4-year-old child weighs 37 lb. What is this weight converted to kilograms, rounded to one decimal place?

A child weighs 15 kg and is 90 cm tall. Using the BSA formula from the appendix (sqrt(kg * cm / 3600)), what is the child's Body Surface Area?

What is the reason that an order for a chemotherapeutic drug requires an 'extra verification step'?

A child weighing 25 kg is prescribed a drug at 10 mg/kg/dose. What is the total dose in mg for one administration?

A total daily dose of a drug is 600 mg. If the drug is to be administered QID (four times a day), what is the single dose in mg?

The appendix gives an example of calculating a ceftriaxone dose for meningitis. Why is this information about the indication (meningitis) important?

What is the final step in the amoxicillin calculation in Example 1, after the single dose in mg has been determined?

A child weighing 55 lb needs a medication. What is this weight in kilograms?

A single dose of 250 mg is needed. The medication is supplied as a 125 mg/5 mL suspension. What volume in mL should be administered?

A child is 110 cm tall and weighs 20 kg. What is the child's Body Surface Area (BSA) in m², calculated using the formula from the appendix?

Which of the following orders requires clarification from the prescriber to avoid a medication error?

A child weighs 14 kg and needs a medication at 25 mg/kg/day, divided BID. What is the total amount of medication in mg the child will receive in one day?

In Example 3, what is the indication for the vincristine being administered?

An 88 lb child needs a dose of medication. What is the child's weight in kilograms?

A child weighing 16 kg needs a medication at 50 mg/kg/day, given in two divided doses. What is the single dose in mg?

A dose of 300 mg is required. The medication comes in a 250 mg/5 mL concentration. What is the required volume in mL?

Which of the calculation examples provided in the appendix uses Body Surface Area (BSA) as the basis for dosing?

What is the reason a dose of amoxicillin for a 1-year-old child in Example 1 is divided BID?

A child is prescribed a medication at a dose of 75 mg/kg/day, to be given once daily. The child weighs 10 kg. What is the total dose in mg to be administered?

A child is 120 cm tall and has a BSA of 0.8 m². The required dose of a medication is 1.5 mg/m². What is the total dose in mg?

What is the second step in the calculation for amoxicillin in Example 1?

A child weighing 77 lbs requires a medication. What is the child's weight in kilograms?

What is the third step in the calculation for amoxicillin in Example 1?

A total daily dose of a medication is 1000 mg, to be given in four divided doses (QID). What is the amount of a single dose?

A child weighing 11 lbs needs a medication. What is this weight in kilograms?

A dose of 500 mg is required. The concentration is 200 mg/5 mL. What is the required volume in mL?

According to the appendix, which type of order for a pediatric medication is considered confusing and requires clarification?