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Test Code LAB1748 CBC (Complete Blood Count) w/ Diff

Performing Lab

Arnot Ogden Medical Center/ Ira Davenport Memorial Hospital

Ordering Recommendations

A screening tool to confirm a hematologic disorder, to establish  or rule out a diagnosis, to detect an unsuspected hematologic  disorder, or to monitor effects of radiation or chemotherapy.

These counts are used as clinical guides in the diagnosis or  monitoring of many diseases.

Collect

Whole Blood

Collection Device

EDTA Lavender Top Tube

Light Blue Top Sodium Citrate Tube may be used in special situations when the sample exhibits platelet clumping. 

Rejection Criteria

  • Specimen is clotted
  • Quantity Not Sufficient for Analysis (QNS) – The minimum sample volume is 2mL in an EDTA vacutainer tube or 250 µL for a capillary puncture.

Stability (from collection to initiation)

Room Temp 24 Hours
Refrigerated 48 Hours

Storage/Transport Temperature

Refrigerated

Specimen Volume

3 mL

Minimum Requirements

2 mL

250 uL capillary puncture

Remarks

TURN AROUND TIME

STAT 1 Hour
Routine 8 Hours

Methodology

Coulter Method
 

Start Date

9/13/2017

Last Review Date

06/20/2025

7/3/25 AP

7/31/2025 JLH