Answer
4 mL
Step-by-step explanation
You need to know the conversion factor of cc to mL
cc means cubic centimeter and mL means milliliter. They are both unit of volume.
cc and mL are the same measurement; there is no difference in volume. The primary difference is that milliliters are used for fluid amounts while cubic centimeters are used for solids.
Therefore, 1 cc always equals 1 mL
Now, If 240 mg are ordered and 60 mg/cc is available, it means
60 mg ----> 1 mL
240 mg ----> x mL
x = (240 mg/60 mg) x 1 mL = 4 mL
Therefore 4 mL should be given.