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Test Code LABAHA Histone Antibody, IgG

Important Note

Evaluate suspected drug-induced lupus. Negative results do not rule out drug-induced lupus.

Additional Codes

Test Name in EPIC EPIC Test Code Mnemonic ARUP Test ID
Histone Antibody, IgG LABAHA AHA 0050860

 

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Specimen Requirements

Speicmen Type: Serum

Container/Tube: Serum SST

Specimen Volume:  0.5 mL

Specimen Minimum Value: 0.3 mL

Specimen Prep:  Separate serum from cells ASAP or within 2 hrs of collection.

Rejection Critera:  Grossly hemolyzed, icteric, or lipemic specimens.

 

Specimen Transport Temperature

Refigerate 2 weeks

Day(s) Test Set Up

Monday, Wed-Saturday

Performing Laboratory

ARUP Laboratories

Test Classification and CPT Coding

83516

Report Available

1-3 days

Reference Values

0.9 units or less Negative

1.0-1.5 units Weak Positive

1.6-2.5 units Moderate Positive

2.6 units or greater Strong Positive

 

Interpretative Data

Histone antibodies are present in 20-55% of idiopathic systemic lupus erythematosus (SLE) and 80-95% of drug-induced SLE. They occur in less than 20% of other types of connective tissue diseases