What duration of time passed between the shot and the blood work? Most clinics generally try to keep you approximately in the range of 700-1000ng/dL total serum testosterone.
If you took the blood work shortly after the shot, a spike in your test can be expected. In terms of 'good or bad', it's generally favorable to be in the upper part of the range.
A note: It's the doctors responsibility to explain your blood work to you---don't hesitate to ask questions.