TSH PREGNANCY
Thyroid Stimulating Hormone (TSH) Pregnancy, Serum or Plasma
EPIC Test Procedure Code: LAB5056
Performing Lab:
Saint Luke's Regional Laboratories
Container Type:
Serum gel tube or green top (heparin) tube
Specimen Type:
Serum or plasma
Preferred Volume:
2 mL
Minimum Volume:
1 mL
Collection Procedure:
1. Indicate serum or plasma on the request form.
2. Label the specimen appropriately (serum or plasma).
Store and Transport:
Room Temperature: < 12 hours
Refrigerated: > 12 hours
Refrigerated: > 12 hours
CPT Codes:
84443 - TSH (EAP 30015500)
Test Schedule:
Monday through Sunday
Method:
Chemiluminescence
Reference Ranges:
1st Trimester:
0.10 - 2.50
mIU/mL
2nd Trimester:
0.20 - 3.00
mIU/mL
3rd Trimester:
0.30 - 3.00
mIU/mL
Notes:
High serum biotin levels may interfere with this assay and result in a false decrease in values. A repeat test 24 – 48 hours after stopping oral biotin may be requested.