Geisinger Proven Diagnostics Test Catalog

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Test code:
Specimen type:
Whole blood
Tube type / collection container:
Specimen collection notes:
Preferred specimen is a 2 mL EDTA lavender-top tube.
One EDTA lavender-top microtainer is acceptable for newborns, small infants, and difficult draws.
GRL: Submit two (2) blood smears made from the lavender-top tube wihtin 8 hours of collection.
What to submit:
Tube: 2 mL EDTA lavender-top tube properly filled with 2 mL of blood (1.6 mL of blood is minimum for acceptable sample).
Microtainer: 500 uL is proper fill. Minimum acceptable will be 250 uL (microtainer has lines to indicate the 250 and 500 uL volumes).
GRL: Two (2) blood smears are to accompany the blood sample for those sent from off-campus sites. The slides are to be labeled with identifiers; e.g., MRN and name.
Patient preparation:
Specimen Processing Instructions:
Do not centrifuge. Two (2) blood smears must accompany the sample if not received within the lab within 8 hours of collection. 
Transport temperature:
Refrigerated (preferred) or room temperature.
Specimen stability:
Lavender tubes: Refrigerated sample is stable for 72 hours. Room temperature: 36 hours. Blood smears must be made from refrigerated tube within 16 hours of collection or within 8 hours of collection when kept at room temperature.
Rejection criteria:
Clotted, frozen, underfilled, overfilled, hemolyzed, or centrifuged specimens. Specimens beyond stability limits.
Reference range:
0-700 uL.
Alert limits:
Additional information:
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:
Calculation of absolute eosinophil count.
Electronic Particle Cell Counter
Absolute Eosinophil Count
Clinical Significance:
Eosinophils can increase in response to allergic disorders, inflammation of the skin, parasitic infections, or various bone marrow disorders.
Doctoral Director Review:
R. Patrick Dorion M.D.    11/08/2013

Performing Locations

Geisinger Medical Center

Performing laboratory: Hematology (GMC)
Doctoral director: R. Patrick Dorion M.D.
Technical specialist: Michele Adler
Frequency: 1
Performed stat? N
Review/ revision date: 04/04/2014
Reviewed/revised by: Michele Adler

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Doctoral director: Xiaohong (Mary) Zhang M.D.,Ph.D.
Technical specialist: Amanda Mika    
Frequency: Daily, all shifts    
Performed stat? N
Review/ revision date: 12/20/2013    
Reviewed/revised by: Amanda Mika