00:01
Okay, so here we have a drug conversion problem where we want to administer a moxacetylin.
00:05
So we have a few conversion factors that we can go ahead and write in.
00:08
So we know the dosage of the drug that's prescribed is 75 .1 milligrams per kilogram of body weight, and this is per day.
00:20
But one thing to know is that we need to administer this twice a day, so whichever dose that we end up calculating, we'll need to divide that by two, or whichever total mass of the drug, or total amount of the drug that we need to administer, needs to be divided by two for each dose because this is twice per day.
00:40
And the liquid that it's being administered in has a concentration of 127 .0 milligrams per milliliter.
00:51
And then lastly, we're given the mass of the patient in pounds, but all our conversions use the metric system, milligrams and kilograms.
01:03
Here.
01:05
So we'll also need the conversion between pounds and kilograms, or at least a conversion between the english and the metric system.
01:12
So the conversion between pounds and kilograms is one kilogram is equivalent to 2 .20.
01:19
So we know the child weighs 35 .01 pounds, and we want to find some way to convert this into milliliters of the liquid.
01:33
So right now we're in units of mass of the patient, but we're interested in getting this.
01:37
Into some units that pertain to just the drug.
01:40
And so the conversion between mass and units that pertain to the drug are up here.
01:48
So this converts between kilograms of body weight and mass of the drug, with the milligrams of the drug.
01:54
But here, the mass of our patient is in different units, pounds versus kilograms...