A patient requires 0.012 g of painkillers available as a 15 mg/ml solution. How many ml should be administered?

15 mg/mL x # mL = 12 mg

Solve for # mL.

To calculate the required volume in milliliters (ml) that should be administered, we need to convert the given quantity of painkillers into the same unit as the concentration of the solution.

Given:
Quantity of painkillers required = 0.012 g
Concentration of the solution = 15 mg/ml

1 g = 1000 mg
Therefore, 0.012 g = 12 mg (by converting grams to milligrams)

Now, we can use the formula:

Volume (ml) = Quantity (mg) / Concentration (mg/ml)

Substituting the values:
Volume (ml) = 12 mg / 15 mg/ml

Now, we can cancel out the units of milligrams (mg) and calculate the volume:

Volume (ml) = 12/15 ml
Volume (ml) = 0.8 ml (by dividing 12 by 15)

Therefore, the required volume to be administered is 0.8 ml.