Test directory: T4, Free (Direct Dialysis)

Ordering Code 4710
Test Name T4, Free (Direct Dialysis)
Preferred Specimen Serum
Preferred Container SST (Gold)
Other Specimen/Container Serum in Plain (Red)
Optimum Volume 2 mL
Collection Instructions Fasting specimen preferred but not required.
Transport Requirements Oahu: Ambient
Airline: Ambient
Specimen Stability Ambient: 1 Week
Refrigerated: 1 Week
Frozen: 28 Days
Rejection Criteria Plasma
Avail. Stat NO
Analytic Time Up to 4 Days
Methodology Equilibrium Dialysis, Chromatography/Mass Spectrometry
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 1, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
T4 Free (Direct Dialysis) ALL See report.