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Test Code RNAP RNA Polymerase III Antibodies, IgG, Serum

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Reporting Name

RNA Polymerase III Ab, IgG, S

Useful For

Evaluating patients suspected of having systemic sclerosis as part of systemic sclerosis criteria antibody tests

 

Providing diagnostic and prognostic information in patients with systemic sclerosis


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.3 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Minimum Volume

See Specimen Required

Specimen Type

Serum

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 21 days
  Frozen  21 days

Day(s) Performed

Tuesday, Thursday

Reference Values

<20.0 U (negative)

20.0-39.9 U (weak positive)

40.0-80.0 U (moderate positive)

>80.0 U (strong positive)

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

CPT Code Information

83516

LOINC Code Information

Test ID Test Order Name Order LOINC Value
RNAP RNA Polymerase III Ab, IgG, S 79182-2

 

Result ID Test Result Name Result LOINC Value
RNAP RNA Polymerase III Ab, IgG, S 79182-2

Report Available

2 to 7 days