40249:THYROID STIMULATING HORMONE (TSH) WITH REFLEX TO FT4, IF INDICATED
Author PeaceHealth Laboratories
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| Methodology: |
Chemiluminescent Immunoassay (CLIA) |
| Edit Date: |
6/11/2010 |
| Performed: |
Daily |
| Released: |
Same day as tested |
| CPT Code: |
84443 / 84439 FT4, if reflexed |
| Specimen Collection Details |
| Collection: |
One 7.5 mL serum separator tube (SST). Also acceptable: One 4 mL green top tube (heparin) or one 4.5 mL light green plasma separator tube (PST). |
| Handling: |
Centrifuge SST or PST and transport in original tube. Centrifuge green top tube, separate plasma from cells into a plastic vial. Refrigerate. Freeze if specimen cannot be assayed within 7 days. Allow no more than one freeze/thaw cycle. |
| Stability: |
8 hours ambient, 7 days refrigerated, or 1 month frozen. |
| Standard Volume: |
1 mL serum or plasma |
| Minimum Volume: |
0.4 mL serum or plasma |
| Transport: |
Refrigerated, or frozen on dry ice. |
| Rejection Criteria: |
Use of EDTA tube. |
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Male/Female ages 1 year to adult. |
0.61-1.27 ng/dL |
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