| Test Name: | Thyroid Stimulating Hormone (TSH) |
| Epic Order Code: | LAB129 |
| CPT Code: | 84443 | | |
| Specimen(s) Type: | Plasma or Serum |
| Acceptable Container(s): |   Tube tops are light green and gold. |
| Testing Schedule: | 24 hrs/day, 7 days/week |
| Turn Around Time: | STAT: 1 hour |
| | Routine: 2 hours |
| Collection Information: | No special patient preparation is required. Obtain specimen by standard collection procedures. |
| Transport Information: | Deliver to lab immediately. All specimens must be signed into the laboratory. |
| Reference Clients: | If unable to deliver to the lab within 1 hour, centrifuge the specimen and remove plasma/serum from the red cells. Store and transport at 2-8° C. Specimen must be received in the lab within 24 hours. |
| Causes for Rejection: | Improperly labeled, incorrect container, contaminated, insufficient quantity, incorrect/delay in transport. |
| Reference Range: | 0 - 4 days: | 5.17-14.60 µIU/mL |
| | 4 - 60 days: | 0.43-16.10 µIU/mL |
| | 2 mos - 2 yrs: | 0.62-8.05 µIU/mL |
| | 2 - 7 yrs: | 0.54-4.53 µIU/mL |
| | 7 - 12 yrs: | 0.66-4.14 µIU/mL |
| | 12 - 19 yrs: | 0.53-3.59 µIU/mL |
| | > 19 yrs: | 0.27-4.20 µIU/mL |
| Additional Information: | The presence of autoantibodies may induce high molecular weight complexes (macro-TSH) which may cause unexpected high values of TSH. |