The physician orders cefazolin sodium 0.25 gram Im every 8 hr. The nurse has to reconstitute from a powder. the vial contains cefazolin 1 gram with directions add 2.5 ml sterile water and shake. Provides a volume of 3 ml (330mg/ml). How many ml of medication will the nurse administer, round to the nearest hundredth.

heres what i got not sure if i did it right? ml= 1ml x 1000mg x 0.25 gram= 250. = 0.757= 0.76 ml

330mg. 1 gram. 1 330