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HelpTest Code TA-TPO Thyroid Antibody (Anti-TPO)
Synonyms/Keywords
Anti-TPO, Anti-thyroperoxidase, Microsomal antibody
Specimen Requirements
| Fasting Required | Specimen Type | Preferred Container/Tube | Acceptable Container/Tube | Specimen Volume | Specimen Minimum Volume (allows for 1 repeat) |
Pediatric Minimum Volume (no repeat) |
|---|---|---|---|---|---|---|
| No | Plasma/Serum | Lithium Heparin Plasma Separator Tube (PST) | Lithium Heparin Green Top Tube (GTT), EDTA Lavender Top Tube (LTT), Serum Separator Tube (SST), Red Top Tube (RTT) | 1.0 mL | 0.5 mL | 0.3 mL |
Collection/Processing Instructions
GTT/RTT- physically separate plasma or serum from contact with cells as soon as possible or before transport.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Plasma/Serum | Ambient | 8 hours |
| Refrigerated | 2 days | |
| Frozen | > 2 days |
Rejection Criteria
Gross Hemolysis
Gross Icterus
Interpretations
The thyroid microsomal antigen is thyroid peroxidase (TPO). This assay measures anti-TPO autoantibodies. All requests for Anti-Microsomal Antibody will be interpreted as an order for the Thyroid Antibody Screen (Anti-TPO).
Reference Range Information
| Performing Location | Reference Range |
|---|---|
| Marshfield | < 9 IU/mL |
Marshfield Labs Performing Department
Marshfield Labs Chemistry
Performing Information
| Performing Location | Day(s) Test Performed | Analytical Time | Methodology/Instrumentation |
|---|---|---|---|
| Marshfield | Monday through Friday | Less than 2 hours | Immunoenzymatic assay/ Beckman Coulter Unicel DXI |
CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 86376 | 1 |
Outreach CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 86376 | 1 |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Cerner | Thyroid Antibody Screen (Anti-TPO) |