Test Overview
Test Methodology

Indirect Fluorescent Antibody (IFA), Mouse kidney substrate

Test Usage

Rule out collagen vascular disease

Reference Range *

Negative

Test Details
Days Set Up
Wednesday
Analytic Time

8 hours

Soft Order Code
NABT
MiChart Code
Antinuclear Antibody, Tissue Substrate
Synonyms
  • NABT
  • Tissue ANA
  • Tissue, ANA
  • NABT
  • Tissue, ANA
  • NABT TTR
  • NABT PTTRN
  • NUCLEAR ANTIBODY, TISSUE
  • NAB, TISSUE TITER
  • NAB, TISSUE PATTERN
  • NAB, TISSUE TITER/PATTERN
  • NABT PTTRN
  • NABT TTR
  • NAB, TISSUE PATTERN
  • NAB, TISSUE TITER
Laboratory
Chemical Pathology
Section
Immunopathology
Specimen Requirements
Collection Instructions

Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate up to 3 days. This test is performed on pediatric patients less than 18 years of age with a positive HEp-2 ANA. MLabs will perform the HEp-2 ANA test prior to performing the tissue ANA test; please include HEp-2 ANA results if this test has been performed at your institution. The tissue ANA test will NOT be performed if the HEp-2 ANA test is negative.

Alternate Specimen
Red top tube.
Normal Volume
0.5 mL serum
Minimum Volume
0.2 mL serum
Additional Information

If the tissue ANA screen is positive, a titer will be performed at an additional charge. By ordering this test the clinician acknowledges additional reflex testing will be performed and billed at a separate additional charge if indicated. HEp-2 ANA testing is performed as the initial ANA screening test on pediatric and adult patients; this test is more sensitive than the tissue ANA. The HEp-2 also provides some useful information that the tissue ANA cannot. The tissue ANA is more specific than the HEp-2. The tissue ANA is run on all children less than 18 years of age who have a HEp-2 ANA positive homogeneous, speckled or nucleolar pattern or atypical nuclear matrix pattern at a titer of 1:80 or greater.

Billing
CPT Code
86038
Fee Code
21903
Reflex CPT
86039
Reflex Fee Code
21936
LOINC
NABT 16392-3, NABT Titer 5048-4, NABT Pattern 13068-2