At Quest, Thyroid-stimulating Hormone (TSH) and Free T4 is drawn in a Serum separator tube (SST), order code 36127.

Quest collection requirements

Thyroid-stimulating Hormone (TSH) and Free T4 tube and order code at Quest

Primary tube
Serum separator tube (SST)
Order code
36127
Minimum volume
0.7 mL

Quest verified by: Jared Franklin, Jul 4, 2026

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