DS2 had to have one last year and I had to take him up to our hospital pathology lab for it as the one down the street wouldn't have the right gear to do children. Normally they do get you to put an Emla patch on, but we didn't have the time to wait around for it to work, so we did it without one and he was brilliant. She needed to take several vials of blood, but instead of using the vials themselves on the end of the canula type thingy, she just used a large 20ml syringe to draw out enough blood to fill all the vials. We layed him down on the bed, I held his arm straight and flat and she drew the blood. He got a ****load of stickers and a bravery certificate from her afterwards LOL so he was pretty happy with that.