Answer: The amount of drug that must be given is 102.3 grams
Explanation:
We are given:
Weight of the person = 150.0 lb
Converting this weight into kilograms, we use the conversion factor:
1 kg = 2.20 lb
So, [tex]150.0lb\times (\frac{1kg}{2.20lb})=68.2kg[/tex]
Applying unitary method:
For 1 kg of body weight, the correct dosage of the drug is 1.50 mg
So, for 68.2 kg of body weight, the correct dosage of the drug will be [tex]\frac{1.50mg}{1kg}\times 68.2kg=102.3mg[/tex]
Hence, the amount of drug that must be given is 102.3 grams
The amount of drug in milligrams that must be given will be "102.3 mg".
According to the question,
Person's weight = 150.0 lb
We know that,
2.20 lb = 1 kg
then, = 150.0 × ([tex]\frac{1 \ kg}{2.20 \ lb}[/tex])
= 68.2 kg
For one kilogram of body weight
Dosage of a drug = 1.50 mg
Now,
For 68.2 kg body weight,
The correct dosage will be:
= [tex]\frac{1.50 \ mg}{1 \ kg}[/tex] × 68.2 kg
= 102.3 mg
Thus the above approach is right.
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