Why would it take a lab tech 3 times to draw blood?

Difficult stick: The success at drawing blood depends on the ease of accessing a vein and the experience of the phlebotomist. Three sticks, while uncommon, is not rare. Before you go for a blood draw, make sure you drink enough water so that your blood volume is not low, as that it makes it more difficult to draw blood. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. Get HPV vaccine.