A primary health care provider’s prescription reads to admin…

A primary health care provider’s prescription reads to administer an intravenous (IV) dose of 400,000 units of penicillin G benzathine. The label on the 10-mL ampule sent from the pharmacy reads penicillin G benzathine, 300,000 units/mL. The nurse prepares how much medication to administer the correct dose? Round to the tenths place. Enter the number only.