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ENA Screen
(a.k.a Saline extractable nuclear antigens)
minimum sample volume required ~ 5ml
Tube type: SST
Special instructions
Time limit for add on = 2 days
Interfering substances = none known
Repeat testing not normally recommended.
Samples positive for screening ELISA will reflex to ENA typing for exact specificity.
Reference range
Neg
Linked to
ENA typing
Turnaround Time
14
days
Department: Immunology
Clinical Application
Used to help diagnose connective tissue disease. The ENA ELISA used in this department detects antibodies to anti-Ro, anti-La, anti-U1-RNP, anti-Sm, anti-Jo-1 and anti-Scl-70.
