Lab Test Details
SIM |
LAB129 |
CPT |
84443 |
Synonyms |
TSH |
Specimen Type |
Serum (preferred) lithium heparin plasma |
Container |
Gold-top serum separator |
Collection Instructions |
None |
Volume |
2 ml serum, minimum 0.5 ml |
Additional Information |
Heterophilic antibodies in human serum can react with reagent immunoglobulins, interfering with in vitro immunoassays. Patients routinely exposed to animals or to animal serum products can be prone to this interference and anomalous values may be observed. Additional information may be required for diagnosis. |
Patient Preparation |
none |
Specimen Processing Instructions |
Serum: Allow to clot. Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes Centrifuge within 2 hours of collection. |
Transport Requirements |
Refrigerated |
Specimen Stability |
Room temperature: 18 hours Refrigerated: 7 days |
Rejection Criteria |
If not centrifuged within 2 hours of collection. |
Reference Range |
0.35 - 5.5 uIU/mL |
Critical Value |
none |
Test Includes |
TSH |
Methodology |
Chemiluminescent technology |
Testing Frequency |
Daily, Monday - Sunday |
|
|
Reviewed By |
Summer Brochu |
Reviewed |
9/14/22 |
Supplemental |
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