Safe Range / Weight-Based Practice
Safe Range / Weight-Based Practice Knowledge Check
Safe Range / Weight-Based Practice 1
1. The recommended dosage of Cephalexin to treat impetigo in infants, children, and adolescents is 25 to 50 mg/kg/day divided every 6 to 8 hours (with a maximum dose of 250 mg/dose) for at least seven days. A 23-pound child has been prescribed 100 mg PO q8h for seven days. The drug is available as 250 mg/5mL.
a. What is the recommended safe range in mg/dose for this child when dosed q8h?
b. Is the prescribed dosage within the recommended range for impetigo?
c. What is the range in mL/dose for this child?
d. How many mL/dose would the child receive for the prescribed dosage?
2. The recommended oral dosage of Amoxicillin to treat an ear infection is 80 to mg/kg/day in divided doses every 12 hours. An infant weighing 18 pounds has been prescribed 350 mg q12h. The drug is available as 250 mg/5 mL.
a. What is the recommended range in mg/dose for this child?
b. Is the prescribed dosage within the recommended range?
c. What is the recommended range in mL/dose for this child?
d. How many mL/dose would the child receive for the prescribed dosage?
3. The recommended oral dosage for a medication is 5mg/kg/day divided into 3-4 doses when treating allergies in infants, children, and adolescents. A 46-pound-male child has been prescribed 25 mg PO q6h. The medication is available as an oral solution containing 12.5 mg/5mL.
a. Is this a safe dosage for this child?
b. How many mL/dose will this child receive?
4. A three-day regimen for Azithromycin is 10 mg/kg once daily for three days (Maximum: 500 mg/day). Azithromycin is available as 200 mg/5mL. How many mL will a child weighing 31 pounds receive each day?
5. The dosing guidelines for a medication for children who are <50 kg is 0.2 to 0.5 mg/kg/dose every 3 to 4 hours as needed, and for children 50 kg and over it is 15 to 20 mg every 3 to 4 hours as needed. The medication is available in 2mg/mL and 4 mg/mL.
a. What is the safe mg/dose range for a child weighing 23 kilograms?
b. What is the normal mL/dose range using the 2 mg/mL solution for a child weighing 23 pounds?
c. The physician ordered 2 mL/dose of the 4 mg/mL solution for a patient who weighs 17 kilograms. Is this dose within the safe guidelines?
d. The physician has ordered 3.9 mL of the 4 mg/mL solution for a child who weighs 14 kilograms. Is this dose within the safe guidelines?
6. The dosing guidelines for 1V Ampicillin is 100 to 150 mg/kg/day divided every six hours with a maximum daily dose of 4000 mg.
a. What is the safe mg/dose range for a 63-pound child?
b. What is the safe mg/day range for a 20-kilogram child?
c. The health care provider ordered 700 mg IV q6j for a 50-pound child. Is this dosage within the safe general dosing guidelines?
d. How many mg/kg/day will this child be receiving?
e. A 32-kilogram child has been prescribed a dosage of 140 mg/kg/day divided every six hours. Does this dosage fall within the safe dos