Question

a premature infant weighing 3 lbs is ordered 1 milligram per gram of a drug. how many milligrams should you administer to the patient?
13
1,363
3,000
6,660

Explanation:

Step1: Convert pounds to grams

We know that \( 1 \text{ lb} = 453.592 \text{ grams} \). So for \( 3 \text{ lbs} \), the weight in grams is \( 3\times453.592 \).
\( 3\times453.592 = 1360.776\approx1363 \text{ grams} \) (rounded to a reasonable decimal for calculation)

Step2: Calculate drug dosage

The dosage is \( 1 \text{ milligram per gram} \), so we multiply the weight in grams by \( 1 \text{ mg/g} \).
\( 1363\times1 = 1363 \text{ milligrams} \) (which is approximately \( 1363 \), and the option \( 1,363 \) matches)

Answer:

1,363