At Quest, CBC (includes Differential and Platelets) is drawn in a EDTA (lavender-top), order code 6399.

Quest collection requirements

CBC (includes Differential and Platelets) tube and order code at Quest

Primary tube
EDTA (lavender-top)
Order code
6399
Minimum volume
Microtainer 0.5 mL • 1 mL whole blood EDTA tube

Quest verified by: Mandi Boss B Franklin, Jul 4, 2026

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