White Blood Cell Count

Message

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

Test Code

WBC

Alias/See Also

70235;
WBC (Whole Blood);
White Bld Cnt

CPT Codes
85048

Preferred Specimen

3 mL or 4 mL whole blood K3EDTA (lavender top) tube(s) or K3EDTA (Microtainer® lavender top) tube(s).

Minimum Volume

Minimum fill 1 mL (Microtainer® filled between the 2 lines).

Instructions

Avoid hemolysis. Gently invert 10 times immediately at time of collection.

Transport Container

K3EDTA (lavender top) tube

Transport Temperature

Refrigerated

Specimen Stability

48 hours

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Rejected for gross hemolysis, clotted, <1 mL, non-EDTA tube type, >48 hours old, frozen.

Methodology
Automated Cell Counter

Setup Schedule

Sunday - Saturday
HE

Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.