Which of the following is a common method for converting mL to ccs?

The statement that 1 mL equals 1 cc is accurate and forms the basis for this conversion. Milliliters (mL) and cubic centimeters (cc) are two units of volume that are interchangeable; they represent the same volume. In practice, this means that when you have a volume measured in milliliters, it can be directly expressed in cubic centimeters without any conversion factor other than recognizing their equivalence.

This is particularly useful in medication dosing and medical calculations, as it allows for straightforward conversions when measuring liquids, ensuring clarity and precision in administering medications. The simplicity of this relationship—1:1—makes it easy for healthcare professionals to remember and use in practice.