Local code : ENAS

Preferred Sample Type

ENA Antibody (Extractable Nuclear Antigens): RO (SS-A)

Suitable Specimen Types

  • Serum
5-10 mL

Sample Processing in Laboratory


Sample Preparation


Turnaround Time

5 days

Sample Stability

Stored at 4oC


ENA Antibody (Extractable Nuclear Antigens): RO (SS-A)

General Information

Ro and La are a heterogeneous antigenic complex made up of 52 kDa Ro, 60 kDa Ro and four small RNA particles . Anti-Ro are the most common ENA specificity amongst autoimmune diseases. They can be seen in Sjogren's syndrome, SLE, cutaneous lupus erythematosus, neonatal lupus and primary biliary cirrhosis

Patient Preparation



None Given

Reference Range



  • EQA Scheme?: Yes
  • EQA Status:

    NEQAS eqa scheme for nuclear and related antigens

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The Trust Laboratories at Heartlands Hospital, Good Hope Hospital and Solihull Hospital were awarded UKAS (United Kingdom Accreditation Service) accreditation to the internationally recognised ISO 15189 standard in May 2015. For a list of accredited tests and other information please visit the test database
Tests not appearing on this scope are either under consideration or in the process of accreditation and so currently remain outside of our scope of accreditation. However, these tests have been validated to the same high standard as accredited tests and are performed by the same trained and competent staff.

For further information contact Louise Fallon, Quality Manager, 0121 424 1235

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