What is the correct unit used to describe the vial's volume?

What is the correct unit used to describe the vial's volume?

• A. µL
• B. L
• C. mL
• D. cm3

Answer: (C)

The volume of a vial is described in milliliters (mL) because this is the practical, standard unit used for injectable drugs and labeling. Vials typically contain a few to several tens of milliliters, and dosing is often measured in tenths or halves of a milliliter with syringes marked in mL. Using mL aligns with how doses are prescribed and administered, making calculations and administration straightforward. Microliters are too small for typical vial sizes, liters are for much larger quantities, and cubic centimeters (cm^3) are the same as milliliters but are less commonly used in modern labeling. Since 1 mL equals 1 cm^3, the conventional choice is milliliters.

The volume of a vial is described in milliliters (mL) because this is the practical, standard unit used for injectable drugs and labeling. Vials typically contain a few to several tens of milliliters, and dosing is often measured in tenths or halves of a milliliter with syringes marked in mL. Using mL aligns with how doses are prescribed and administered, making calculations and administration straightforward. Microliters are too small for typical vial sizes, liters are for much larger quantities, and cubic centimeters (cm^3) are the same as milliliters but are less commonly used in modern labeling. Since 1 mL equals 1 cm^3, the conventional choice is milliliters.