This phlebotomy study of draw gives a deeper in depth look at the order of draw for each age group including, adults, adolescents, toddlers, pediatric and infants. Also includes the blood flow in the heart, respiratory system, digestive system, the difference between arteries and veins, capillaries, the different components of the veins and arteries and two sample tests and more. It helps you learn about blood and how it relates to laboratory testing. You'll be, able to learn the different tube types and the different specimens they provide. It also helps you learn about blood and where it comes from and venipuncture, blood components, the difference between serum and plasma, and different problems that may arise from serum and plasma, tube volumes, partial fill tubes and Sarstedt tubes, QuantiFERON tubes, Verifynow tubes and many more.