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You are in the clean room and an order comes in for norepinephrine 10 mg in 250 ml of D5W . How many vials of norepinephrine will be needed to open if it comes in 4mg / 4ml vials?
A . 1 vial
B . 2 vials
C. 3 vials.
D . 4 vials.
E . 2.5 vials.