Sign in →

Test Code LAB129 THYROID STIMULATING HORMONE (TSH)

Important Note

Do not use samples that contain fluorescein. Fluorescein levels > 0.24 ug/mL may decrease results in this assay. Evidence suggests that patients undergoing retinal fluorescein angiography can retain amounts of fluorescein in the body for up to 48-72 hours post-treatment.

Performing Laboratory

 

Mohawk Valley Health System Laboratory

Day(s) Performed

Performed: Daily

Routine TAT: Same Day

Available as a STAT test

Specimen Collection and Handling

Collect mint green top lithium heparin plasma separator tube (PST), gold top serum separator tube (SST), or red top (serum).

Storage

Serum and plasma are stable for 2 days at 2-8 °C and 14 days at less than or equal to -20 °C.