Give two examples of collection tubes and what type of tests they are used for.

"There are a variety of tube colors used for blood collection. A few examples are the yellow & black top, which is used for microbiological testing, and the orange top which is used for STAT serum chemistries."

When taking a phlebotomy course, one of the most important lessons is which color tube should be used for a specific type of test. The interviewer knows this and expects that you will have an understanding, as well. Share what you know with the interviewer.

"There are several tube colors. Two examples are the light blue top, which are coagulation tests, such as patients who are taking Coumadin and a dark green top which is used for whole blood testing using heparin."