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Thyroid Stimulating Hormone

Source Blood
Mnemonic

TSH

If "Progressive Thyroid Stimulating Hormone" or "Progressive TSH" is requested, refer to Progressive Thyroid Stimulating Hormone.

Specimen Requirements

1 x 3 mL or 4.5 mL light green (mint) top PST tube.  Gold top SST tube also acceptable.

0.5 mL plasma or serum

Minimum Whole Blood Volumes for Microcollections

Collection can be combined in one 5 mL PST or SST tube with other thyroid tests.

Specimen Handling
Additional Information Empiric treatment predicated on a single TSH measurement between 4.00 and 10.00 mIU/L in non-pregnant adults remains controversial.  Suggest clinical correlation and consider repeat TSH at an appropriate interval.
Testing Location Chemistry-DSC
Testing Frequency Daily
Alternate Name(s) s-TSH; sensitive TSH; Thyrotropin; TSH
Reference Interval

Age

Male/Female

Units

1 day

11.00-36.00

mIU/L

2 days

8.00-20.00

mIU/L

3 days

1.00-11.00

mIU/L

4 days-150 years

0.20-4.00

mIU/L