Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  


Geisinger Epic Procedure Code: LAB2832         Geisinger Epic ID: 17707

Specimen type:
Whole Blood
Preferred collection container:
Alternate Collection Container:
Lavender-top (K2 EDTA) microcollection tube
Specimen required:
TUBE: 2 mL EDTA lavender-top tube minimum 1.6 mL of whole blood OR EDTA microcollection tube with 250-500uL of whole blood AND

SLIDES: Off-campus laboratory: two-three blood smears are to accompany the sample. They must be labeled with two (2) patient identifiers and made within eight (8) hours of collection AND

HISTORY: A brief history is entered into EPIC. The EPIC form is to accompany the blood sample to the Hematology Lab. site.
Special notes:
Add-ons greater than sixteen (16) hours from collection cannot be performed unless a slide was previously made.

Smears made from refrigerated tubes between 8 and 16 hours of collection will be checked by the lab for acceptability.

Specimen processing instructions:
Do not centrifuge. Prepare two (2) or three (3) blood smears from fresh sample. Send smears with refrigerated lavender-top tube. Include a copy of EPIC request or a paper request with a brief history. 
Transport temperature:
Refrigerated (tube and smears).
Specimen stability:
Room temperature:
Lavender-top tube CBC - 24 hours.
Lavender-top tube differential - Should be made within 8 hours

Lavender-top tube CBC - 72 hours.
Lavender-top tube differential - 24 hours

Once slides are made, they are stable indefinitely.
Rejection criteria:
Clotted, frozen, hemolyzed, overfilled, underfilled, or centrifuged tubes. Specimens beyond stability limits.

Reference interval:
Results reviewed by pathologist.
Critical values/courtesy alerts:
See individual member listing.
CPT code(s):
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
CBCD and interpretation by pathologist with a written report
Electronic Particle Cell Counter
PERS, Differential/pathology consult or pathology consult/peripheral smear
Clinical significance:
A peripheral smear (a smear examined by a pathologist) is primarily ordered to evaluate blood cell populations when a complete blood count with differential (CBCD), performed with an automated blood cell counter, indicates abnormal white blood cells, red blood cells, or platelets. It may also be performed when a doctor suspects a deficiency, disease or disorder affecting blood cell production or increased cell destruction.
Doctoral Director(s:)
Mary Dhesi MD    
Review Date: 03/28/2022

Performing Locations

Geisinger Medical Center

Performing laboratory: Hematology
Technical Lead: Margaret Knowles-Tuchman
Frequency: Initial workup CBCD peformed real time
Performed STAT? No

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Julia Bell    
Frequency: Daily, all shifts    
Performed STAT? No

Geisinger Community Medical Center

Performing laboratory: Hematology
Technical Lead: Robert Furcon  
Frequency: Daily, all shifts    
Performed STAT? No
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