Deck 17: Pediatric and Adult Dosage Calculations Based on Weight

Question 1

An IV medication of 50 mcg in 200 mL is ordered to infuse over 2 hours. The normal dosage range is 1.5 to 3 mcg/kg/h. The child weighs 5.7 kg. What would the nurses actions be:

A) Call the prescriber.
B) Administer the dose as ordered.

Answer 1

Administer the dose as ordered.

Question 2

Round dosage and weight to the nearest tenth as indicated.
Order: Erythomycin ethylsuccinate 62.5 mg PO q6h is ordered for an infant weighing 10 lb 4 oz. The recommended safe dosage is 30 to 50 mg/kg/24 h divided q6h.
The infant's weight is _______ kg and the safe dosage range is from ______ mg/day to ______ mg/day; you would a. Administer or b. Call the prescriber (answer a or b) ______.

Answer 2

4.7; 141; 235; b

Question 3

Round dosage and weight to the nearest tenth as indicated.
Order: Cefaclor (Ceclor) 100 mg PO q8h is ordered for a child weighing 32 lb. The recommended dosage is 20 to 40 mg/kg/day divided q8h.
Available: Cefaclor 50 mg per 2 mL suspension
The child's weight is _______ kg and the safe dosage range is from ______ mg/day to _______ mg/day; administer ______ mL.

Answer 3

14.5; 290; 580; 4

Question 4

Round dosage and weight to the nearest tenth as indicated.
Order: Phenobarbital 45 mg PO BID is ordered for a child with seizures weighing 35 lb. The recommended dosage is 6 to 8 mg/kg/24 h, given every day or DID.
The child's weight is _____ kg and the safe dosage range is from _______ mg/day to _______ mg/day; you would a. Administer or b. Call the prescriber (answer a or b) _______.

Question 5

Round dosage and weight to the nearest tenth as indicated.
Order: Gentamicin 45 mg IV q8h for a child weighing 45 lb. The recommended dosage is 6 to 7.5 mg/kg/day in three to four divided dosages.
The child's weight is _____ kg and the divided dosage range is from _______ mg/day to _______ mg/day; you would a. Administer or b. Call the prescriber (answer a or b) _______.

Question 6

Round dosage and weight to the nearest tenth as indicated.
Order: Albuterol 1.2 mg PO TID is ordered for a child weighing 27 lb. The recommended dosage is 0.3 mg/kg/24 h divided q8h.
Available: Albuterol 4 mg per 10 mL
The child's weight is _____ kg and the divided dose is ______ mg every 8 hours; administer ______ mL per dose.

Question 7

Round dosage and weight to the nearest tenth as indicated.
The recommended dosage of Mezlin for an adult with a serious infection is 200 to 300 mg/kg/day given in four to six divided dosages. The adult weighs 175 lb.
The adult's weight is ________ kg and the 24-hour dosage range is _____ g/day to _____ g/day.

Question 8

Round dosage and weight to the nearest tenth as indicated.
Order: Ticar 4 g IV q6h
The recommended dosage of Ticar for an adult with a complicated urinary tract infection is 150 to 200 mg/kg/day IV in divided dosages every 4 or 6 hours. The adult weighs 194 lb.
The 24-hour dosage range is from _______ g/day to _______ g/day; you would a. Administer or b. Call the prescriber (answer a or b) _______.

Question 9

Using the West nomogram, determine the body surface area (BSA) for a child with the height and weight given. 32 inches and 25 lb.
The BSA is _____ m².

Question 10

Using the West nomogram, determine the body surface area (BSA) for a child with the height and weight given. 80 cm and 11 kg.
The BSA is _____ m².

Question 11

Using the West nomogram, determine the body surface area (BSA) for a child with the height and weight given. 22 inches and 10 lb.
The BSA is _____ m².

Question 12

Using the West nomogram, determine the body surface area (BSA) for a child with the height and weight given. 170 cm and 50 kg.
The BSA is _____ m².

Question 13

Using the formula when indicated, calculate the following dosages. Express the answer to the nearest tenth.
The recommended dosage of methotrexate is 25 to 75 mg/m²/wk. The child's height is 30 inches and the weight is 25 lb.
The child's BSA is ________ m² and the recommended dosage range is from ____________ mg per week to _______ mg per week.

Question 14

Using the formula when indicated, calculate the following dosages. Express the answer to the nearest tenth.
The recommended dosage of Zovirax for a child who is immunosuppressed and has a varicella-zoster infection is 500 mg/m². The child weighs 26.5 lb and is 58 inches tall.
The child's BSA is ________ m² and the recommended dosage is __________ mg.

Question 15

Determine the volume of solution that must be added to the burette in the following problem.
Determine the rate in gtt/min for each IV when a microdrop is used, then the rate in mL/h for a controller. The volume of a 75-mg dosage of medication is 3 mL. Dilute to 55 mL and infuse over 45 minutes.
The dilution volume is ________ mL and the IV device is regulated at ____________ gtt/min, totalling ____________ mL/h of medication.

Question 16

Determine the volume of solution that must be added to the burette in the following problem.
Determine the rate in gtt/min for each IV when a microdrop is used, then the rate in mL/h for a controller. A medication of 1 g in 4 mL is to be diluted to 60 mL and infused over 90 minutes.
The dilution volume is ________ mL and the IV device is regulated at ________ gtt/min, totalling __________ mL/h of medication.

Question 17

Determine the normal dosage range to the nearest tenth.; place a space after the thousands place, e.g., 8 888.
A child weighing 16.4 kg is to receive a medication IV with a dosage range of 100 to 150 mg/kg/day. The order is for 600 mg in 75 mL D5W q6h.
The normal dosage range is from ________ mg/day to ________ mg/day and you would a. Administer or b. Call the prescriber (answer a or b) ________.

Question 18

Determine the normal dosage range to the nearest tenth; place a space after the thousands place, e.g., 8 888.
A child weighs 10 kg and is to receive 0.5 g of nafcillin in 100 mL D5W q6h. The dosage range is 100 to 200 mg/kg/day.
The normal dosage range is from ________ mg/day to ________ mg/day and you would a. Administer or b. Call the prescriber (answer a or b) ________.

Question 19

Determine the normal dosage range to the nearest tenth.
An IV medication of 50 mcg in 200 mL is ordered to infuse over 2 hours. The normal dosage range is 1.5 to 3 mcg/kg/h. The child weighs 5.7 kg. The dosage is _________ mcg/h and the dosage range is from _______ mcg/h to _______ mcg/h.