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Thyroid Cascade Profile Ref Lab

Alternate Names
330015 LC
SoftLab Order Code
THYCA
Epic Order Name
THYROID CASCADE PROFILE, REF LAB LC 330015
Epic Order ID
LAB3281
Tests Included

Thyroid-stimulating hormone (TSH) with automatic reflex (as diagnostically warranted) to free thyroxine, free triiodothyronine, and/or thyroid peroxidase (TPO) antibodies. 

Laboratory

Reference Lab

Additional Test Information

Note: Special reflexing. If TSH is <0.450, it will reflex to thyroxine (T4), free, direct and depending on the thyroxine (T4), free, direct result, may reflex to a triiodothyronine (T3), free, both at an additional charge. If the TSH is >4.500, it will reflex to thyroxine (T4), free, direct and depending on the thyroxine (T4), free, direct result, may reflex to a thyroid peroxidase (TPO) antibody, both at an additional charge.

Sample Type
Serum (preferred) or Plasma
Collection Container

SST -(Gold Top Serum Separator Tube)

Gold Top

Alternative Collection Container

Red (No Gel tube)

RST (Orange Rapid Serum Tube)

Red/Black Speckled top (Serum tube)

Green Top (Lithium Heparin Tube)

Collecting Volume
4.0 mL
Minimum Collecting Volume
2.0 mL (This volume does not allow for repeat testing.)
Storage or Stability
Ambient
Causes for Rejection
Oxalate, Citrate or EDTA Plasma
Patient Preparation

no biotin for 72 hrs prior

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