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Test Code GBM Glomerular Basement Membrane Antibody

Additional Codes

Ordering Mnemonic
GBM

 

Methodology

Fluoroenzyme Immunoassay

Performing Laboratory

Holland Hospital Laboratory Services

Specimen Requirements

Submit one of the following specimen(s):

 

Preferred Specimen-Serum

Container/Tube: Serum gel (SST) tube

Specimen Volume: 1 mL of serum

Collection Instructions:

Note: 1. Indicate serum.

2. Label specimen appropriately (serum).

 

Alternate specimens-Plasma

Container/Tube: Mint-top (lithium heparin) tube

Specimen Volume: 1 mL of plasma

Collection Instructions:

Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

 

Container/Tube: Lavendar-top (EDTA) tube

Specimen Volume: 1 mL of plasma

Collection Instructions:

Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

 

 

 

 

Specimen Transport Temperature

Refrigerate; Freeze if >48 hrs.

Day(s) Test Set Up

Wednesday and Friday

Test Classification and CPT Coding

83516 (HH Bill Code 022423501)

Reference Values

Negative for GBM   <7 EliA U/mL

Equivocal for GBM   7-10 U/mL

Positive for GBM  >10 U/mL