How it Works
Try Naxlex NCLEX-RN (Free-Trial)

The recommended dosage of phenytoin for a child is 7 mg/kg/24 h given q h. The child's weight is 55 lb. The medication is supplied in 125 mg/5 mL. How many milliliters will be administered for each dose? . .
Answer and Explanation

The Correct Answer is ["3.5"]

Step 1: Convert pounds to kilograms. 55 lb ÷ (2.2 lb/1 kg) = 25 kg.

Step 2: Calculate the total milligrams per 24 hours. 7 mg/kg/24 h × 25 kg = 175 mg/24 h.

Step 3: Calculate the milligrams per dose (q h implies 2 doses per 24 hours). 175 mg/24 h ÷ 2 doses = 87.5 mg/dose.

Step 4: Calculate the volume in milliliters per dose. 87.5 mg ÷ (125 mg/5 mL) = 3.5 mL. 3.5 mL will be administered for each dose.


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is ["50"]

Explanation

Step 1: Calculate the total puffs per day. 2 puffs/dose × 2 doses/day = 4 puffs/day.

Step 2: Calculate the number of days the inhaler will last. 200 puffs ÷ 4 puffs/day = 50 days. The inhaler will last 50 days.

Correct Answer is ["3.5"]

Explanation

Step 1: Convert pounds to kilograms. 55 lb ÷ (2.2 lb/1 kg) = 25 kg.

Step 2: Calculate the total milligrams per 24 hours. 7 mg/kg/24 h × 25 kg = 175 mg/24 h.

Step 3: Calculate the milligrams per dose (q h implies 2 doses per 24 hours). 175 mg/24 h ÷ 2 doses = 87.5 mg/dose.

Step 4: Calculate the volume in milliliters per dose. 87.5 mg ÷ (125 mg/5 mL) = 3.5 mL. 3.5 mL will be administered for each dose.

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register