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Test Code 4011893 CBC W/ Manual Diff

Important Note

Due to aritfactual changes in cellular morphology, it is not possible to perfom a reliable differential on smears made from samples greater than 36 hours old.

Specimen Requirements

4.0 mL whole blood

Container

EDTA (lavender top) tube

Minimum Volume

300 µL in a regular tube or 160 µL in a microtainer tube

Stability

24 hours at room temperature, 36 hours at 2-8°C

Reject Due To

Improperly labeled sample
Clotted samples
Gross hemolysis
Samples drawn above an IV line

Analytical Time

Same day
Available stat

Sample Retention Time

7 days

CPT Code

85007

Method

Electronic Resistance Detection, Cumulative Pulse Hight Detection, Photometry, Flow Cytometry, and Microscopy

Performing Laboratory

Springfield Hospital Laboratory