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Test Code PR3M Proteinase 3 Antibodies, IgG, Serum

Additional Codes

 

MAYO Test ID

  PR3

EPIC Test ID

  LAB2669

 

Reporting Name

Proteinase 3 Ab (PR3), S

Useful For

Evaluating patients suspected of having Wegener granulomatosis (WG)

 

Distinguishing between WG and other forms of vasculitis, in conjunction with MPO / Myeloperoxidase Antibodies, IgG, Serum and ANCA / Cytoplasmic Neutrophil Antibodies, Serum (may be obtained as VASC / Antineutrophil Cytoplasmic Antibodies Vasculitis Panel, Serum)

 

May be useful to follow treatment response or to monitor disease activity in patients with myeloperoxidase antibodies

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL


Specimen Minimum Volume

0.35 mL

Specimen Stability Information

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

Reference Values

<0.4 U (negative)

0.4-0.9 U (equivocal)

≥1.0 U (positive)

Reference values apply to all ages.

Day(s) and Time(s) Performed

Monday through Saturday; 4 p.m.

Test Classification

This test has been cleared or approved by the U.S. 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.

CPT Code Information

83516

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PR3 Proteinase 3 Ab (PR3), S 48408-9

 

Result ID Test Result Name Result LOINC Value
PR3 Proteinase 3 Ab (PR3), S 48408-9

Analytic Time

Same day/1 day

Reject Due To

Hemolysis

Mild OK; Gross reject

Lipemia

Mild OK; Gross reject

Icterus

Mild OK; Gross OK

Other

NA

Method Name

Multiplex Flow Immunoassay