I always fast before having a blood draw. Also I have my blood draw on my injection day before I inject.Switched to 3.5-day shots Tues.- 6 am and Fri.- 6 pm.
Coming up on 6 weeks Fri., should I give blood early Fri. morn when they open at 8 am or when they close at 4 pm?
Do most people not drink or eat the night before giving blood?