Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

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


Sunquest Test Code:
THYRO      Geisinger Epic Procedure Code: 84432         Geisinger Epic ID: 7013

Specimen type:
Preferred collection container:
Alternate Collection Container:
Gold-top (serum separator) microcollection tube
Specimen required:
1 mL aliquot of refrigerated serum; minimum 0.5 mL.
Special notes:
If collecting specimen in microcollection tubes, collect 3 FULL serum separator microcollection tubes.

Specimen processing instructions:
Allow to clot. Centrifuge and submit 1 mL aliquot of serum. 
Transport temperature:
Specimen stability:
Refrigerated: 5 days. Frozen: 2 months.
Rejection criteria:
Specimen will be rejected if stability limit has been exceeded or if specimen is hemolyzed, lipemic or icteric.

Reference interval:
0.73 - 84 ng/mL.
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:
Thyroglobulin value.
Clinical significance:
Thyroglobulin determinations have been widely used to complement radioiodine scanning and other techniques (such as ultrasound or immunohistochemical staining) as an aid in identifying the presence or absence of functioning thyroid tissue, or an increase in such tissue relative to an individually established baseline. The differential diagnosis of congenital hypothyroidism is a well-established context of use for this application of serum thyroglobulin measurement.
Doctoral Director(s:)
Stacy Kenyon, PhD, DABCC
Hoi-Ying Elsie Yu, PhD, DABCC    
Review Date: 11/13/2018

Performing Locations

Geisinger Medical Center

Performing laboratory: Clinical Immunoassay (CIA)
Technical Lead: Karen Delp
Frequency: Sunday, Tuesday-Friday; 1st shift
Performed stat? No
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