Testing for Extractable Nuclear Antigens (ENA)

The lab analyst performs an assay to evaluate the patient’s serum for each antibody to an extractable nuclear antigen, also called ENA. Types of ENA antibodies include anti ribonuclear protein, called RNP or nRNP; anti Sjogren’s Syndrome A and B, called SS A and SS B; anti Smith, called Sm; and anti scleroderma, called Scl 70. Choose a location to see hospital-reported price summaries. This page does not show national, sample, or aggregate pricing.