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Test Code TSH Cascade TSH Cascade

Abbrev

TSHR- A
TSH will be performed, and if abnormal, a Free T4 will be
reflexed.
If the Free T4 is normal, then a TT3 will be performed as part
of
our TSH Reflex Cascade.

Storage Temperature

R (2-8ºC)

ASTM/HL7/SDF 1

SQ=CTSHC

EPIC=LAB

Instrument/Location

Beckman DXC 600i

Specimen Requirements

Specimen
Type: Serum or Plasma (Lithium Heparin)

 

Container/Tube
Type: Gold Top or Lt. Green Top.

 

Collection
Instructions: Draw tube and label appropriately.
Allow Gold top tubes to clot for 30 minutes. Spin tubes within 2 hours.

 

Note: Hemolyzed Specimens are
not acceptable.

Specimen Transport Temperature

Spun tube/Refrigerated

Reference Values

0.34-5.6 uIU/ml

Methodology

1-Step Sandwich

Specimen stability/Retention time

Specimens are kept in Chemistry for 7 days. This test has a
specimen stability of 7 days at 2-8 degress C.