Child dose by clark's rule

6. Patient-based Dose 6.1) Pediatric dose 6.1.5) Clarks rule

6.1.5.1) Child dose based on weight of child Easy 1


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A 67 lb child has to be prescribed a drug. if the adult dose is 400 mg , Calculate the child's pediatric dose in milligrams.


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lb equals 178.67 mg kg

Here Adult dose = 400 mg
Weight of the child = 67 lb = 30.418 kg

Clark's rule, based on weight:

Child dose ` =(Weight \quad (lb))/(150) × ADULT \quad DOSE \quad (mg)`
`\quad\quad\quad\quad\quad\quad\quad\quad = (67)/(150) × 400 \quad mg = 178.67 \quad mg` Ans.


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