Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  


Sunquest Test Code:
FHGBS      Geisinger Epic Procedure Code: 85460         Geisinger Epic ID: 7184

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 properly filled with 2 mL of blood (1.6 mL of blood is minimum for acceptable sample).
Microcollection tubes: 500 uL is proper fill. Minimum acceptable will be 250 uL (microcollection tube has lines to indicate the 250 and 500 uL volumes).
Special notes:
Preferred specimen is a 2 mL EDTA lavender-top tube.
One EDTA lavender-top microcollection tube is acceptable for difficult draws.

Specimen processing instructions:
Do not centrifuge. 
Transport temperature:
Refrigerated (preferred) or room temperature.
Specimen stability:
Specimen stable for two weeks if refrigerated.
Rejection criteria:
Frozen, clotted, underfilled, overfilled, hemolyzed, or centrifuged specimen.

Reference interval:
Less than 0.1%.
Additional information:
0.0-0.2 1 300 1500
0.3-0.8 2 600 3000
0.9-1.4 3 900 4500
1.5-2.0 4 1200 6000
2.1-2.6 5 1500 7500
> 2.6 Unable to correlate results with table. Please call Director of Transfusion Services for advice.

False positives may occur in certain disorders such as sickle cell disease, hereditary persistence of fetal hemoglobin, thalassemia or other hemoglobinopathies.

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:
Percent of fetal red cells, recommended RhoGAM dosages.
Kleihauer-Betke Stain, Fetaldex, test for fetomaternal hemorrhage.
Clinical significance:
To determine if an excessive fetomaternal hemorrhage has ocurred and, if so, to determine the number of vials of RhoGAM needed to assure prophylaxis.
Doctoral Director(s:)
Michelle Grant DO    
Review Date: 04/29/2019

Performing Locations

Geisinger Medical Center

Performing laboratory: Hematology
Technical Lead: Margaret Knowles-Tuchman
Frequency: 1
Performed stat? No

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Amanda Mika    
Frequency: Daily, all shifts    
Performed stat? Yes

Geisinger Community Medical Center

Performing laboratory: Hematology
Technical Lead: Renee Bordo, Robert Furcon  
Frequency: Daily    
Performed stat? Yes

Geisinger Lewistown Hospital

Performing laboratory: Hematology
Technical Lead: Lisa Sheaffer  
Frequency: Daylight    
Performed stat? Yes

Geisinger Holy Spirit Hospital

Performing laboratory: ATL+
Technical specialist: Hadeel Naghnaghieh    
Frequency: Daily, all shifts    
Performed stat? Yes
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*GMC - Geisinger Medical Center; GWV - Geisinger Wyoming Valley Medical Center; GSACH - Geisinger Shamokin Area Community Hospital; GBH - Geisinger Bloomsburg Hospital;
GCMC - Geisinger Community Medical Center (Scranton); GLH - Geisinger Lewistown Hospital; GHS - Geisinger Holy Spirit; GJSH - Geisinger Jersey Shore Hospital,
GSWB - Geisinger South Wilkes-Barre