THYROID STIMULATING HORMONE 3rd GENERATION

Message

Centrifuge within 2 hours of collection.

Test Code

TSH

Alias/See Also

Thyrotropin

CPT Codes
84443

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

0.5 mL

Other Acceptable Specimens

or 1 Green tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of plasma or serum and red cells within 2 hours.

Transport Temperature

Refrigerate

Specimen Stability

2-8°C up to 7 days
15-30°C up to 8 hours
Frozen samples are stable

Methodology

ECLIA (EIA by Chemiluminescence)

Setup Schedule

M, T, W, Th, F, Sa, Sun

Report Available

Within 24 hours of receipt at the performing laboratory.

Reference Range

Please see test code TSHP for Prenatal ranges.

AGE	REFERENC RANGE
0-3 Days	5.170 - 14.600 mIU/L
4-30 Days	0.430 - 16.100 mIU/L
1-24 Months	0.620 - 8.050 mIU/L
2-6 Years	0.540 - 4.530 mIU/L
7-11 Years	0.660 - 4.140 mIU/L
12-17 Years	0.530 - 3.590 mIU/L
>18 Years (adult)	0.270 - 4.200 mIU/L

Clinical Significance

TSH is the test of choice for evaluating thyroid function and/or symptoms of hyper/hypothyroidism.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB2 (Chemistry, Beckman DxI)

Last Updated: June 8, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.