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Test Code DIF Differential, Blood

Performing Laboratory

Northwell Health Laboratories

Methodology

Automated or Manual

Reference Values

See report.

Test Classification and CPT Coding

85007 - manual (if appropriate)

85025 - automated (if appropriate)

Physician Office Specimen Requirements

Container/Tube:  Lavender-top (EDTA) tube(s)

Specimen:  3 mL (minimum volume:  0.25 mL) of EDTA whole blood

Transport Temperature:  Refrigerate

Collection Instructions:  Tube must be more than half full for proper anticoagulant ratio. For pediatrics, draw blood in a MICROTAINER®. Do not draw a small volume into a standard VACUTAINER®.

Day(s) and Time(s) Performed

Monday through Friday