Some phlebotomists just don't like to have any requests thrown at them. And some just don't like not getting blood on X number of draws. My PCP's phlebotomist refuses to draw my blood because she's never gotten a full tube successfully within her self imposed 2 tries limit.

On the other hand, I've been spoiled by infusion nurses.. they're the best . They can find ANY vein, but even they need to stick multiple times on occasion. And the heating pad/hot pack trick is awesome.

From what they've told me, some people need the butterfly. Others don't. Some, like me don't do well with vacutainers connected directly--causes the vein to contract and quit giving blood. Seems most phlebotomists connect straight to the vacutainer because it's faster and less waste, so they think my veins just don't "give".