Laboratory Test Detail

Last Updated: July 13, 2024 @ 9:13 am


ENA Antibody

  • One SST

Also Acceptable:
  • One Red Top
  • 1 mL (Min:0.5 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling:
  • Separate from cells ASAP
Rejection Criteria:
  • Grossly Hemolyzed Samples
  • Grossly Lipemic Samples
  • Heat inactivated
  • Microbial Contamination
  • Particulate matter
Stability:Ambient: 8 Hour(s); Refrigerated: 2 Day(s); Frozen: 1 Month(s); Incubated: Unacceptable
  • Enzyme-Linked ImmunoSorbent Assay (ELISA)
Performed:Monday, Wednesday, Thursday
Reported:1-4 Day(s)
CPT Codes:
  • 86235x2
Interpretive Data:Please see report for interpretive data.

Smith Ab and Sm/RNP Ab Reference Ranges:
<20 Units Negative
20-39 Units Weak Positive
40-80 Units Moderate Positive
>80 Units Strong Positive

A positive Sm/RNP Ab result indicates the presence of antibodies reactive with the Smith (Sm) protein and/or ribonuclear protein (RNP). This Sm/RNP assay cannot distinguish between Anti-Sm and Anti-RNP activity, thus should be considered with the Sm Ab test result to determine clinical significance.
  • 2366 - SMITH AB
  • 2365 - SM/RNP AB
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