If a physician orders 50mg of Demerol with a concentration of 100mg/ml, how many cc's will be injected?

To determine how many cc's (cubic centimeters) need to be injected based on the provided order, you start with the concentration of the medication and the required dosage.

The physician has ordered 50 mg of Demerol, which has a concentration of 100 mg/ml. This means that for every 1 ml (or cc) of solution, there are 100 mg of Demerol present.

To find the volume (in cc's) that contains 50 mg, you can use the following relationship:

1. First, set up the calculation to convert the desired dose (50 mg) into ml. This can be done using the formula:

Volume (ml) = Desired Dose (mg) / Concentration (mg/ml)

2. Substituting the values from the problem:

Volume (ml) = 50 mg / 100 mg/ml = 0.5 ml (or cc)

This calculation shows that to administer 50 mg of Demerol, you will inject 0.5 cc of the solution. Therefore, the correct answer accurately reflects the amount of medication that should be administered based on the concentration provided.