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Test Code LAGGN Granulocyte Antibody Screen, Serum

Additional Codes

Epic Ordering Code LAB305380
NBS code LBC13485
Service code 37224

Reporting Name

Granulocyte Ab Screen, S

Specimen Type

Serum Red


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Red top (serum gel/SST are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 1.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.

Additional Information: Only a specimen collected before a transfusion reaction is acceptable.


National University Hospital-Singapore Note:

NUH Outreach Laboratories:
Specimen Requirements
Submit the following:
Container: Red Top
Only a specimen collected before a transfusion reaction is acceptable.
Processing Requirements
Centrifuge and aliquot serum into a Mayo plastic tube.
Specimen type: Serum
Volume: 1.5 mL
Storage/transport requirements: Refrigerated

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Red Refrigerated (preferred) 30 days
  Frozen  365 days
  Ambient  7 days

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus OK

Method Name

Flow Cytometry/Agglutination

Day(s) Performed

Tuesday, Thursday

Report Available

7 to 15 days
National University Hospital-Singapore Note:

Please note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.

Reference Values

Not applicable

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Work-up of individuals with autoimmune neutropenia

 

Work-up of individuals having febrile nonhemolytic transfusion reactions

 

Work-up for alloimmune neonatal neutropenia

 

This test is not useful for the diagnosis of neutropenia due to marrow suppression by drugs or tumors.

CPT Code Information

86021 x2

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LAGGN Granulocyte Ab Screen, S 105285-1

 

Result ID Test Result Name Result LOINC Value
LAGG2 GIFT/GAT Interpretation 105288-5
LAGG3 GIFT Result 105286-9
LAGG4 GAT Result 105287-7

Secondary ID

621630

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.
National University Hospital-Singapore Additional Information:

Last updated 28/07/2026