If a patient is given 3 tablespoons of medication from a full 150 mL bottle, how many milliliters of medication remain in the bottle?

Total volume = 150 mL. Convert the amount of medication administered from tablespoons (Tbsp) to milliliters (mL). 1 Tbsp = 15 mL. Administered volume: = 3 Tbsp × 15 mL/Tbsp = 45 mL. Calculate the remaining volume of medication in the bottle. Remaining volume = Total volume - Administered volume = 150 mL - 45 mL = 105 mL.