ARUP's Laboratory Test Directory

ssDNA Antibody, IgG : 0099528

Mnemonic: DNA SS

Methodology: Enzyme-Linked Immunosorbent Assay
Performed: Tue, Thu, Sat
Reported: 1-4 days
Specimen Required: Collect:  One 4 mL serum separator tube.

Transport:  1 mL serum at 2-8°C. (Min: 0.5 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport:  0.15 mL serum at 2-8°C.

Remarks:  Separate serum from cells ASAP.

Unacceptable Conditions:  Plasma.  Severely lipemic, contaminated, or hemolyzed specimens.

Stability:  After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
< 20 EU: Negative
20-25 EU: Borderline positive
> 25 EU: Positive
Note: The ssDNA antibody test detects ssDNA and some dsDNA antibodies.  As a result, patient samples should also be tested for dsDNA antibodies in order to more accurately determine the level of anti-ssDNA antibodies.  By calculating the ratio (ssDNA/dsDNA), a conclusion can be made as to the presence of ssDNA antibodies.  A ratio less than or equal to 1.0 indicates the absence of ssDNA antibodies.  A ratio greater than 1.0 indicates the presence of ssDNA antibodies.
CPT Code(s): 86226
 
 

 

 

 
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