TSH


Sunquest Code:TSH  
Epic Code:LAB129Epic Name:TSH
Synonyms:Thyroid Stimulating Hormone; Thyrotropin; 3rd Generation; TFT; TSH Reflex
Methodology:Chemiluminescence
Turnaround Time:Varies by site.


Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel), St Johns/St Joseph/Woodwinds-Green (lithium heparin, no gel) (Green (lithium heparin, no gel), Purple (EDTA), Red (no gel), Red or gold (gel), St Johns/St Joseph/Woodwinds - Red (no gel))
Contraindications:Large doses of biotin (10 mg or more per day) may cause clinically significant interference in TSH levels. If interference is suspected, it is strongly recommended that biotin is discontinued for at least one week prior to retesting.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:Stability: Refrigerated - 7 days; frozen - indefinitely.
Test Performed at or Referral Lab Chemistry  (M Health Maple Grove Clinic, Range, UMMC-East Bank, Oxboro Bloom, Lakes, Ridges, Northland, Southdale, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center, Grand Itasca, St. Joseph's, St. John's, Woodwinds)


Interpretive

Critical Range:0-3 years: Greater than 23 mIU/L
Reference Range:

Age

mIU/L

0-3 d

1.0-20.0

4-30 d

0.5-6.5

31 d-5 mo

0.5-6.0

6 mo and older

0.4-4.0

 

 

Use:Evaluate thyroid function in people with intact pituitary glands.


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