Dose range by body weight

6. Patient-based Dose 6.2) Body Weight 6.2.1) Body weight General

6.2.1.1) Drug dose based on body weight Easy 1


Total tried:       Correct:       Wrong:

Dosage range of Isoniazid for adult is 4 to 6 mg/kg of body weight. Calculate the usual range for a adult weighting 134 lb?


Click on the button below to see the answer and explanations

lb equals 240 mg - 370 mg kg


  • Simple DA method for 4 mg drug
`(4 \quad mg)/(1\quad kg) × 134 \quad lb × (0.454\quad kg)/(1\quad lb)` = 243.344 mg


  • Simple DA method for 6 mg drug
`(6 \quad mg)/(1\quad kg) × 134 \quad lb × (0.454\quad kg)/(1\quad lb)` = 365.016 mg


Therefore, range is from 243.344 mg to 365.016 mg actually, literatures round these numbers and express as 240 mg to 370 mg

List Of Problem

        Copyrights © 2024 rxcal.org | Powered by Xpert Stack