MD order: Digoxin 10 mcg/kg IV as a digitalizing dose

Available: 0.1 mg/mL
Child's weight: 27 kg
How many milliliters will you give the child each day? Show all work using dimensional analysis

1 answer

First, we need to calculate the total dose of digoxin needed for the child.

10 mcg/kg x 27 kg = 270 mcg

Next, we need to convert the dose from micrograms (mcg) to milligrams (mg) since the concentration of the medication given is in mg/mL.

1 mg = 1000 mcg

270 mcg x (1 mg / 1000 mcg) = 0.27 mg

Since the concentration of the medication available is 0.1 mg/mL, we can determine how much volume of the medication to administer by dividing the dose by the concentration.

0.27 mg / 0.1 mg/mL = 2.7 mL

Therefore, you will give the child 2.7 milliliters of digoxin each day.