Advanced Diagnostic Laboratories

Collect

Collect in a plain red top or SST tube.

Pediatric Collection

Minimum volume: 0.1 mL

Storage Transport Temp

Send serum Priority Overnight via FedEx and in a well insulated container frozen on dry ice.

Stability

Frozen at -70°C: 1 year. Serum samples may be stored at +2°C to +8°C for up to 14 days if necessary.

Notes

National Jewish Health Advanced Diagnostic Laboratories offer a Myositis Antigen Panel to aid in the diagnosis of the idiopathic inflammatory myopathies, commonly referred to as myositis. When combined with clinical features, the Myositis Antigen Panel can aid clinicians in making a diagnosis of myositis, polymyositis, dermatomyositis, anti-synthetase syndrome and related conditions. The Myositis Antigen Panel provides a qualitative in vitro assay for human antibodies present in serum of the IgG class to 17 different antigens.

Performed

Weekly

Methodology

Immunoblot

Turnaround Time

2-12 days

Department

Immunology Lab - Diagnostic

Synonyms

Mi-2 alpha; Mi-2 beta; Ku; PM-Scl100; PM-Scl75; Jo-1; SRP; PL-7; PL-12; EJ; OJ; Ro-52; TIF1 gamma; MDA5; NXP2; SAE1; cN-1A

Study Offerings

RUO
CAP/CLIA

Reference Interval

Negative 0-5 Units
Borderline 6-10 Units
Positive 11-50 Units
Strong Positive >50 Units

Interpretation

Antibodies to the antigens are determined by an immunoblot assay. The color developed for each antigen is determined by densitometry and the intensity of the color is proportional to the antibody reactivity. The results are given in arbitrary intensity units.

CPT Code

84182 x 17

New York Approved

No: Run with Waiver

FDA

LDT