The order reads 25 mg/kg per day for a patient who weighs 45 lbs. If the drug is available as 50 mg/mL, how many milliliters will the patient receive per day?

To determine the correct amount of milliliters the patient will receive per day, we first need to convert the patient’s weight from pounds to kilograms. The conversion factor is that 1 kg is approximately 2.2 lbs.

Calculating the weight in kilograms:

[

\text{Weight in kg} = \frac{45 \text{ lbs}}{2.2 \text{ lbs/kg}} \approx 20.45 \text{ kg}

]

Next, we can calculate the total daily dose of the medication based on the provided dosage of 25 mg/kg:

[

\text{Total daily dose} = 25 \text{ mg/kg} \times 20.45 \text{ kg} \approx 511.25 \text{ mg}

]

Now, to determine how many milliliters the patient will receive, we know the concentration of the drug is 50 mg/mL. To find the volume in milliliters, we divide the total daily dose by the concentration:

[

\text{Volume (mL)} = \frac{511.25 \text{ mg}}{50 \text{ mg/mL}} = 10.225 \text{ mL}

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