Sign in →

Order Code LAB102 Thyroid Screen with Reflex

Additional Codes

Test Name in EPIC

EPIC Test Code           

Mnemonic

RV THYROID SCREEN 

LAB102

THYSC

 

Useful For

Diagnosis and monitoring of thyroid disease

Specimen Requirements

If possible, inform patients to stop taking Biotin (hair, nail) supplements 2-3 days before their lab draw.

Specimen Type: Serum

Collection Container/Tube:

Preferred: SST

Acceptable: Plain, red-top tube or SST

Specimen Volume: 2 mL

Pediatric (minimum) volume: 0.5 mL

Specimen Stability

Specimen Type         Temperature                               Stability              
Plasma or Serum Ambient 4 hours
  Refrigerated (preferred) 7 days
  Frozen 4 weeks

Reference Values

  • TSH: 0.465 - 4.68 mIU/L
  • T4, Free: 0.78 - 2.19 ng/mL

 

Please refer to Mayo's Thyroid Function Ordering Algorithm for additional ordering information.

 

http://mayomedicallaboratories.com/it-mmfiles/Thyroid_Function_Ordering_Algorithm.pdf

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Ridgeview Medical Center Laboratory (TSH and T4 Reflex)

Two Twelve Medical Center Laboratory (TSH Only)

Ridgeview Sibley Medical Center Laboratory (TSH Only)

Ridgeview Le Sueur Medical Center Laboratory (TSH Only)

Methodology

Includes TSH Thyroid-Stimulating Hormone (TSH), Plasma or Serum. If TSH is abnormal, then FT4 (Thyroxine), Free, Serum will be ordered and performed at an additional charge.

Immunometric

Test Classification and CPT Coding

84443 - TSH

84439 - T4, free (if appropriate)