SCL-70 Antibody with Reflex to Confirmation


Abbrev Code:LABCORP MISC   
Order Code:LAB4909Order Name:Send Outs Misc Test
Synonyms:Antiscleroderma Antibody, SCL 70; Antitopoisomerase-1; Anti SCL Antibody
Methodology:Enzyme linked immunosorbent assay (ELISA)
CPT Codes: 86235 x1
Turnaround Time:Specimens are sent to the reference laboratory Mon-Sat; results are reported within 14-21 days.
Compliance:

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.



Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:0.8 mL.  Does not permit repeat analysis or confirmation
Container:Red or gold (gel)
Alternate Containers: Red (no gel)
Causes for Rejection:Hemolysis, icterus, lipemia, gross bacterial contamination


Processing and Shipping

Specimen Processing:Within 1 hour of collection, centrifuge and aliquot 1 mL, 0.3 mL minimum. Store refrigerated.
Shipping Instructions:Ship at refrigerated temperature to East Bank Core Sendouts for shipment to referral lab.
Stability:7 days at room temperature; 14 days refrigerated; 60 days frozen.
Test Performed at or Referral Lab Lab Sendouts  (LabCorp)
Referral Lab number:520012


Interpretive

Reference Range:< 20 Units
Use:The presence of anti-Scl-70 antibodies confirms the diagnosis of scleroderma but does not exclude additional diagnosis, e.g., scleroderma and SLE or scleroderma and Sjogren's syndrome. Anti-Scl-70 antibodies are present in 20% of scleroderma patients irrespective of age and in the same percentage of males and females. In American patients with proximal scleroderma, anti-Scl-70 antibodies are more common in African Americans than in Caucasians.


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