sorry health. disagree again. even after the tourniquet, and dangling my arm and having my arm slapped, it still takes a good tech to get it in one shot. my veins don’t pop out and can only be found if the tech is good with feeling for veins ONLY. no visible veins even at the AC area. i needed an IV recently and the nurse-who works peds-also had a hard time finding a vein to use
the DY person was bad to begin with so add that to the above and you get a disaster.
and BTW i prefer if the tech uses the butterfly. their hand is steadier going in.