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Weight based dosing Simple DA method

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


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The usual initial dose of A phase III drug is 75 mcg/kg of body weight. How many milligrams should be administered to a patient weighing 155 lb?


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lb equals 5.28 mg kg

Simple DA method (with drug’s weight in starting numerator).

`(75 \quad mcg)/(1\quad kg) × 155 \quad lb × (0.454\quad kg)/(1\quad lb) × (1\quad mg)/(1000\quad mcg)`


`\quad \quad \quad \quad \quad \quad \quad \quad\quad \quad \quad \quad \quad = 5.28 \quad mg \quad Ans.`



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