Final answer:
Blood samples are collected into different tubes for various tests, and the order in which the tubes are drawn is important to prevent contamination and obtain accurate results.
Step-by-step explanation:
Blood samples are collected into different tubes for various tests. When drawing blood, the tubes are typically filled in a specific order to prevent contamination and ensure accurate results. In general, the tubes are drawn in the following order: a. Red, b. Green, c. Gold/Tiger Tops, d. Lavender.