The physician ordered atropine sulfate 0.6 mg IM before surgery. The medication is supplied in 0.8 mg/mL. How many mL would you administer?

To determine how many milliliters of atropine sulfate to administer, you need to calculate the volume based on the concentration provided. The physician ordered 0.6 mg of atropine, and the medication is available at a concentration of 0.8 mg/mL.

The calculation requires finding the volume that contains the required dose:

1. Identify the ordered dose and concentration: You need 0.6 mg and the concentration is 0.8 mg/mL.

2. Use the formula: Volume (mL) = Desired dose (mg) / Concentration (mg/mL).

Plugging in the numbers:

Volume = 0.6 mg / 0.8 mg/mL = 0.75 mL.

Thus, the correct volume to administer is 0.75 mL, which corresponds to the choice identified. This calculation shows how dosing is derived from concentration and is an essential skill in pharmacology to ensure accurate medication administration.