Laboratory for bloodwork is difficult  With 2 visits . I had 30 Chemotherapy  Without the port so most veins are Difficult for Inexperienced technicians  They try twice and then call someone Else who gets it right away. Is It Possible For U to notify them to use Experienced person to draw blood. I am a retired  Physician I know they are busy but it would help a lot as they mostly use my hands. Thanks. 
CMC INF