Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

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


Sunquest Test Code:
HZS      Geisinger Epic Procedure Code: 85441         Geisinger Epic ID: 7182

Specimen type:
Whole blood
Preferred collection container:
Alternate Collection Container:
Lavender-top (K2 EDTA) microcollection tube
Specimen required:
2 mL EDTA lavender-top tube with minimum 1.6 mL whole blood.
EDTA microcollection tube with 250-500 uL whole blood.
Special notes:
Testing should be started as soon as possible after collection.

Specimen processing instructions:
Do NOT centrifuge. 
Transport temperature:
Refrigerated or room temperature.
Specimen stability:
Testing should be started within 24 hours of collection.
Rejection criteria:
Clotted, frozen, overfilled, underfilled, hemolyzed, or centrifuged specimens.

Reference interval:
None seen.
Additional information:
Test is unreliable in infants under six months of age.
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:
Microscopic evaluation for presence of Heinz bodies.
Clinical significance:
The presence of Heinz bodies may be due to an enzyme (G6PD) deficiency, unstable hemoglobin variant, thalassemia, and autoimmune hemolytic anemia.
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
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