Answer :
To find the correct dose of prednisone in mL for a 30 lb pediatric patient, convert pounds to kilograms, calculate the total mg dosage (0.5 mg/kg), and then convert to mL using the concentration of 5 mg/mL. The result is approximately 1.4 mL, corresponding to option 2.
The subject of this question is medicine, specifically drug dosage calculations based on body weight, which is a common practice in pediatric medication administration.
To calculate the correct dose of prednisone for a pediatric patient who weighs 30 lbs, we need to convert the weight from pounds to kilograms, knowing that one pound is equivalent to 0.453592 kilograms.
Once we have the weight in kilograms, we can calculate the total dosage in milligrams using the prescribed dose of 0.5 mg/kg.
Lastly, we convert the total mg dose to the volume in mL using the medication concentration of 5 mg/mL.
- Convert weight from pounds to kilograms: 30 lbs * 0.453592 kg/lb = 13.6078 kg.
- Calculate the total dosage: 13.6078 kg * 0.5 mg/kg = 6.8039 mg.
- Convert the mg dose to mL: 6.8039 mg / 5 mg/mL = 1.36078 mL.
Therefore, the correct dose in mL is approximately 1.4 mL when rounded to one decimal place.
