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Test Code LAB299 White Blood Cell (WBC) Count, Automated

Specimen Requirement

2.5 - 5.0 mL EDTA whole blood

Specimen Minimum Volume

0.5 mL EDTA whole blood

Specimen Stability

8 hours room temperature

48 hours refrigerated (4° C)

Testing Schedule

Daily

Reference Range

3.6 – 11.0 K/UL  over 16 years
4.5 – 13.5 K/UL  8 to 16 years
5.5 – 15.5 K/UL  2 to 8 years
6.0 – 17.5 K/UL  1 month to 2 years
5.0 – 21.0 K/UL  1 week to 1 month
13.0 – 38.0 K/UL  0 to 1 week

Testing Department

Hematology/Coagulation

Method

Flowcytometry using semiconductor laser

CPT Code

85048

Additional Testing Locations

This test is also performed daily at the following Altru Clinics:

  • Crookston
  • Devils Lake
  • East Grand Forks
  • Family Medicine Residency
  • Red Lake Falls
  • Altru Professional Center Laboratory

Please contact appropriate lab location for specific test information, as methodology varies by site.