NHA Certified Phlebotomy Technician (CPT) Exam

A phlebotomist needs to draw blood for a CBC, a BMP, and coagulation studies. Which tube should be filled FIRST?

Lavender-top tube (EDTA) Light blue-top tube (sodium citrate) Green-top tube (heparin) for the metabolic panel Gray-top tube (sodium fluoride)

Light blue-top tube (sodium citrate)

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