Glutamine Synthetase by Immunohistochemistry
Ordering Recommendation

Refer to ARUP Immunohistochemistry Stain Offerings brochure at

1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Immunohistochemistry Stain Form Recommended  (ARUP form #32978)Immunohistochemistry Stain Form Recommended (ARUP form #32978)
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Tissue or cells. 
Specimen Preparation
Formalin fix (10% neutral buffered formalin is preferred) and paraffin embed specimen (cells must be prepared into a cellblock). Protect paraffin from excessive heat. Transport tissue block or 5 unstained (3-5 micron thick sections), on positively charged slides (Min: 2 slides). If sending precut slides, do not oven bake. 
Storage/Transport Temperature
Room temperature. Also acceptable: Refrigerated. Ship in cooled container during summer months. 
Unacceptable Conditions
Specimens submitted with non-representative tissue type. Depleted specimens. 
IMMUNOHISTOCHEMISTRY ORDERING AND SUBMISSION DETAILS: Submit electronic request. If you do not have electronic ordering capability, use an ARUP Immunohistochemistry Stain Form (form #32978) with an ARUP client number. For additional technical details, please contact ARUP Client Services. 
Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable 
Reference Interval
Interpretive Data

Statement A: Compliance Statement A: For laboratory developed tests using a manufacturer labeled ASR as the reagent providing the specificity of the assay. Analyte Specific Reagent. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, the FDA has determined that such clearance or approval is not necessary.

This test is performed as a stain and return (technical) service only.
Hotline History
View Hotline History
Component Test Code*Component Chart NameLOINC
3000468Glutamine Synthetase Reference Number
3000469Glutamine Synthetase by IHC
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please view this test within the Laboratory Test Directory found at
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  • PIG 59 antibody
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