Chapter 11: Pediatrics

Chapter 11: Pediatrics

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

7. A child has seizures.

Order: phenytoin (Dilantin) 50 mg, PO, bid

Child’s weight: 16 kg

Pediatric dose parameter: 3 to 8 mg/kg/day

Drugs available: Dilantin 30 mg/5 mL and Dilantin 100 mg/5 mL

1. How many milligrams would the child receive per day?
2. What is the dose parameter according to the child’s weight?
3. Is the dose within safe dose parameters?
4. How many milliliters would you give the child per dose?

ANS:

1. 100 mg/day
2. Parameter: 3 mg/kg/day ´ 16 kg = 48 mg/day

8 mg/kg/day ´ 16 kg = 128 mg/day (48 to 128 mg/day)

1. Yes
2. 2.5 mL of phenytoin (Dilantin) 100 mg/5 mL bottle

8. A child has seizures.

Order: phenytoin (Dilantin) 125 mg, PO, daily

Child’s height and weight: 36 in, 45 lb

Pediatric dose parameter: 250 mg/m²/day

Drugs available: Dilantin 30 mg/5 mL and 100 mg/5 mL

1. What is the child’s body surface area (BSA) in meters squared (m²)? (Use nomogram to determine BSA.)
2. What is the dose parameter according to the child’s BSA?
3. Is the dose within safe dose parameters? Explain.
4. Which bottle of Dilantin would you use?
5. How many milliliters would you give the child per day?

ANS:

1. BSA = 0.74 m²
2. 250 mg/m²/day ´ 0.74 m² = 185 mg/day
3. Yes. The dose per day (125 mg/day) is less than maximum dose (185 mg/day).
4. Dilantin 100 mg bottle
5. 6.25 mL from Dilantin 100 mg/5 mL bottle