Question

1. A drug used to treat pain has a dosage of 125.0 mg drug/lb of body mass. Calculate the
gram dosage for a 62.7 kg person.

Answer 1

• The conversion rate from kilograms(kg) to pounds(lb) is given as:

        1kg  = 2.20462 Ib

• The weight of the person is We convert the weight from kg to Ib

1kg  = 2.20462 Ib

 62.7kg = ?

Cross multiply

= 62.7kg x   2.20462 Ib / 1 kg

= 138.2298 Ib

Approximately the weight of the person = 138.23 Ib

• A drug used to treat pain has a dosage of 125.0 mg drug/lb of body mass.

This means: 1 Ib of body weight = 125.0 mg drug

The drug dosage for a 62.7 kg person is calculated as:

1 Ib of body weight = 125.0 mg drug

138.23 Ib = ?

Cross Multiply

= 138.23 Ib x 125 mg / 1 ib

= 17278.75 mg

The gram dosage for a 62.7kg person is

1 mg =  0.001 g

17278.75 mg = ?

= 17278.75 x 0.001 g

= 17.27875g

Approximately = 17.3 g.

The gram dosage for a 62.7kg person is 17.3 grams

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