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Test ID CRTHS Double-Stranded DNA (dsDNA) IgG Antibodies, Crithidia luciliae Immunofluorescence Screen, 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: 0.7 mL Serum

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


Secondary ID

623426

Useful For

Evaluation and management of anti-double-stranded DNA IgG antibodies in patients with clinical features of systemic lupus erythematosus (SLE) or at-risk for disease

 

This test should not be used independently for the diagnosis and management of patients with SLE.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
CRTHT dsDNA Ab IFA Titer, IgG, S No No

Testing Algorithm

If the double-stranded DNA (dsDNA) IgG antibodies Crithidia luciliae immunofluorescence screen is positive, then the dsDNA IgG antibodies Crithidia luciliae immunofluorescence titer will be performed at an additional charge.

Specimen Type

Serum

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  21 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus OK
Heat-treated Reject

Reference Values

DOUBLE-STRANDED DNA (dsDNA) IgG ANTIBODIES, CRITHIDIA LUCILIAE IMMUNOFLUORESCENCE SCREEN

Negative (<1:10)

Reference values apply to all ages.

 

DOUBLE-STRANDED DNA (dsDNA) IgG ANTIBODIES, CRITHIDIA LUCILIAE IMMUNOFLUORESCENCE TITER

Negative (<1:10)

Day(s) Performed

Monday through Friday

Report Available

2 to 4 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86255