i'm just a novice at this so i'm going to let someone else answer your question but will tell you what i do.
your gh came unconstituted right? if so how many iu of active do you have? what does the label say?
i use a slin pin to reconstitute my gh using a using the 10 mark as 1 iu. if the vial says 10 iu i put in 100 iu of ba, 18 iu.....i put in 180....ect
bob