Kenya Medical Laboratory Tests

Total tetraiodothyronine (FT4) Test in Kenya

Brief Description

it is a blood test that measure the amount of tetraiodothyronine in the blood



Patient Preparation

The patient should avoid taking biotin supplements at least 72 to sample collection.

Sample Type

serum or plasma

Sample volume

1ml(adult)","0.8(pedriatric) with a minimum volume of 0.7(adult)","0.3(pedriatric)ml

Sample collection Container

Gel-barrier"," red-top or green top tube (lithium heparin). Avoid using EDTA"," oxalate or citrate p

Sample collection instructions

transfer separated serum to a plastic transport tube if a red top tube is used..

Sample storage

Store sample at room temperature

Reference range


Results Turnaround

within 24 hours of receipt of samples

Diseases / Diagnostic Indicators

increased T4 occur in neonatal state"," hepatitis and primary biliary cirrhosis. Low levels occur inliver and systemic illness"," nephrotic syndrome andacromegaly.