What is the amount of sodium chloride salt in milligrams to be added to the following ophthalmic preparation to make it isotonic? Naphazoline hydrochloride 1% Sodium chloride salt qs to make solution isotonic Sterile water qs ad 30 mL Sodium chloride equivalent for naphazoline is 0.27 a. 0.27g b. 0.25g c. 0.20g d. 0.19g

What is the amount of sodium chloride salt in milligrams to be added to the following ophthalmic preparation to make it isotonic? Naphazoline hydrochloride 1% Sodium chloride salt qs to make solution isotonic Sterile water qs ad 30 mL Sodium chloride equivalent for naphazoline is 0.27 a. 0.27g b. 0.25g c. 0.20g d. 0.19g