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Test Code LAB4072 CELL COUNT W/DIFFERENTIAL, CSF

Important Note

Sample must be walked to the laboratory. Do not use tube system.

Specimen Type

CSF

Collection Instructions

Collect CSF with a Sterile CSF Collection Set.

Specimen Volume

1.5 mL

Minimum Volume

1 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hrs

Test Schedule

Daily

Sample Stability

Room temperature: 4 hours
Refrigerated: 12 hours

Specimen Processing

Transport ASAP. Fluids delayed more than 2 hours should be refrigerated to a maximum of 72 hours.

Method

Manual Microscopy

Reference Ranges

Tube Appearance RBC   No Reference Range

Nucleated Cells

          0-11 mo 0-3 /uL

          1-4 yrs 0-20 /uL

          5-15 yrs 0-10 /uL

         16+ yrs 0-5 /uL

Number of Cells Seen

Segs

         0-42 days 0-8 %

         43+ days 0-6 %

Bands %

Lymphocytes

         16+ yrs 40-80 %

Variant Lymphocytes %

Monocytes

           16+ yrs 15-45 %

Histiocytes %

Eosinophils %

Basophils %

Others %

Non-Heme Cells Nucleated RBC /100wbc

Test Components

Tube Number;

Xanthochromia;

Color; Clarity;

RBC, /uL;

Nucleated Cells, /uL;

Number of Cells Seen;

Segs, %; Bands, %;

Lymphocytes, %;

Variant Lymphocytes, %;

Monocytes, %; Histiocytes, %;

Eosinophils, %;

Basophils, %;

Others, %;

Non-Heme Cells;

Nucleated RBC, /100WBC;

Note.

CPT Codes

89051

Rejection Criteria

Clotted specimens or specimens that have been at room temperature for 24 hours of more will be analyzed only with physician authorization.