WBC Count

Label Mnemonic:	WBC
Epic code:	LAB4952
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Hematology
6240 RCP
356-3527

Specimen(s):

Blood

Collection Medium:

Lavender top tube 3 mL (EDTA)

Minimum:

Full draw; 3.0 mL lavender top; (or fingerstick)

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

1 hour (upon receipt in laboratory)

Reference Range:

18 years+                  3.7-10.5 k/mm3
6 years - <18 years        4.5-13.0 k/mm3
4 years - <6 years         5.0-15.5 k/mm3
2 years - <4 years         5.5-15.5 k/mm3
1 year - <2 years          6.0-17.0 k/mm3
3 months - <1 year*        6.0-17.5 k/mm3
31 days - <3 months*       5.0-19.5 k/mm3
0 day - <31 days*          9.0-30.0 k/mm3
*values refer to full term infants.

Critical value: <1.0 k/mm3 and >50.0 k/mm3

Comments:

This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).

Methodology:

Flow Cytometry

CPT Code:

85048

See Additional Information:
Hematology Critical Lab Values
Hematology Pediatric Reference Ranges