Test ID SMAT Smooth Muscle Antibody Titer, Serum
Specimen Required
Only orderable as part of a reflex. For more information see SMAS / Smooth Muscle Antibody Screen, Serum.
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.8 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial
Useful For
Antibody titer testing as a part of evaluating patients with chronic liver disease in whom the diagnosis of chronic active autoimmune hepatitis is suspected
Testing Algorithm
If the smooth muscle antibody (SMA) screen is equivocal or positive, then the SMA titer will be performed at an additional charge.
Method Name
Only orderable as part of a reflex. For more information see SMAS / Smooth Muscle Antibody Screen, Serum.
Indirect Immunofluorescence
Reporting Name
Smooth Muscle Ab Titer, SSpecimen Type
SerumSpecimen Minimum Volume
0.4 mL
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Serum | Refrigerated (preferred) | 21 days |
Frozen | 21 days |
Reference Values
Only orderable as part of a reflex. For more information see SMAS / Smooth Muscle Antibody Screen, Serum.
Negative
Reference values apply to all ages.
Day(s) Performed
Monday through Saturday
Report Available
2 to 4 daysPerforming Laboratory

Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
86015
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
SMAT | Smooth Muscle Ab Titer, S | 5358-7 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
608956 | Smooth Muscle Ab Titer, S | 5358-7 |