Practice 30 Phlebotomist interview questions covering venipuncture skills, patient care, and safety protocols.
Question 19 of 30
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Heather Douglass has over 20 years of experience as a Career Coach, Recruiter, and HR Specialist. Much of her experience is as a Technical Recruiter in the healthcare industry.
"Light blue tops are used when a patient's clotting time needs to be checked, such as someone who is taking an anticoagulant, like Coumadin."

Darby Faubion has been a Nurse and Allied Health Educator for over 20 years. She has clinical experience in several specialty areas, including pediatrics, medical-surgical, critical care, and hospice.
"Light blue topped containers contain sodium citrate, which prevents coagulation by binding to calcium. This tube is used when we need to check the actual clotting time of a patient's blood. A blue top should never be drawn first, and if it is the only tube required for the tests ordered, a vial of blood should be drawn first and then discarded. The tube should be inverted 3-4 times only. This tube should never be underfilled or mixed vigorously."

Heather Douglass has over 20 years of experience as a Career Coach, Recruiter, and HR Specialist. Much of her experience is as a Technical Recruiter in the healthcare industry.
Understanding which tubes are used for specific tests is crucial for a phlebotomist. Although someone who is just beginning a career in phlebotomy may not be able to answer a question with a lot of 'in-depth' information, a general understanding is expected before becoming certified.

Heather Douglass has over 20 years of experience as a Career Coach, Recruiter, and HR Specialist. Much of her experience is as a Technical Recruiter in the healthcare industry.
"A light blue top is used when drawing blood to test coagulation, or clotting, times."

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Written by Darby Faubion
30 Questions & Answers • Phlebotomist

By Darby

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