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Test Code RBCM RBC Morphology

Additional Codes

Lab Order Only

Purpose

Automated analyzers are limited in the ability to reveal morphological features of blood cells. An automated analyzer will display "instrument flags" relating to abnormal findings in cell size, volume, unexpected populations or unavailable data/counts. Staining of the peripheral blood smear allows the rapid differentiation of morphological cell types. Observation of morphological characteristics and abnormalities of white blood cells, red blood cells, and platelets are made.

Methodology

Wright stained peripheral smear with Microscopic examination and interpretation.

Sample Type

Preferred Sample Type
Lavendar Top - EDTA Whole Blood

Centrifuge: No

Specimen Minimum Volume

0.5 mL

Specimen Stability

Temperature Time
Ambient (18-25°C) (store) 8 hours
Refrigerated (2-8°C) 8 hours
Frozen (-15 to -20°C) N/A

 

Rejection Criteria

Hemolysis N/A
Icterus N/A
Lipemia N/A

Reject if:

  • Clotted
  • Outside of stability limits

Availability

Performed STAT
24/7 Yes

 

Performing Laboratory

MultiCare Yakima Memorial Hospital Laboratory

Lab Department

Hematology

CPT Code

85008

LOINC

24318-8 Manual Differential panel (Bld)