Specimen: 2 mL (1 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

Comment: This is the recommended test for T4 assay as it detects the biologically active fraction in circulating blood.

Price: Contact Medilab

Turnaround time (TAT): 5 hrs

Usage: Free T4 is the metabolically active fraction of thyroxine. FT4 along with TSH gives an accurate picture of thyroid status in patients with abnormal thyroid binding globulin (TBG) like in pregnancy and individuals on treatment with estrogens, androgens, phenytoin or salicylates. This assay is useful for diagnosing both Hypo / Hyperthyroidism.

Specialty: Endocrinologist, Physician

Disease: Disorders of Thyroid gland


Courier Charges:

Home Collection: Available


Pre-test Information: No special preparation required

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