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Test Code CTDC Connective Tissue Diseases Cascade, Serum

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
CMA Centromere Ab, IgG, S Yes No
CASMT ANA2 Cascade No No
RIB Ribosome P Ab, IgG, S Yes No
ENAE Ab to Extractable Nuclear Ag Eval,S Yes No
ADNA1 dsDNA Ab, IgG, S Yes No

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


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: 1 mL

Collection Information: Centrifuge and aliquot serum into plastic vial.


Specimen Minimum Volume

0.7 mL

Specimen Stability Information

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

Reference Values

ANTINUCLEAR ANTIBODIES (ANA)

≤1.0 U (Negative)

1.1-2.9 U (Weakly positive)

3.0-5.9 U (Positive)

≥6.0 U (Strongly positive)

Reference values apply to all ages.

 

CYCLIC CITRULLINATED PEPTIDE ANTIBODIES, IgG

<20.0 U (Negative)

20.0-39.9 U (Weak positive)

40.0-59.9 U (Positive)

≥60.0 U (Strong positive) 

Reference values apply to all ages.

Day(s) Performed

Monday through Saturday

CPT Code Information

86038

86200

83516-Centromere (if appropriate)

83516-Ribosome (if appropriate)

86225-ds-DNA AB IgG, Serum (if appropriate)

86235 x 6-RNP, Sm, SS-B, SS-A, Jo 1, and Scl 70 (if appropriate)

Report Available

3 to 4 days

Specimen Retention Time

14 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus OK