Specimen: 3 mL (1.5 mL min.) serum from 1 SST. Ship refrigerated or frozen.
Stability (Room): 2 hrs
Stability (Refrigerated): 1 week
Stability (Frozen): 4 weeks
Method: Chemiluminescent Immunoassay
Price: Contact Medilab
Turnaround time (TAT): 5 hrs
Usage: Assays detecting unbound or free form of thyroid hormones are highly sensitive to detect thyroid dysfunction. They reflect the active form of the hormone, unaffected by non-thyroidal factors. Use of TSH alone as a screening test may be misleading, hence simultaneous measurement of free T3 & T4 are important. TSH should not be used as an isolated laboratory test to assess thyroid function specially in patients with suspected or known pituitary disease.
Specialty: Endocrinologist, Physician
Disease: Disorders of Thyroid gland
Components: *Free T3 *Free T4 *TSH, Ultrasensitive
Home Collection: Available
Pre-test Information: No special preparation required