Thyroglobulin, tumor marker-429

Test info

  
Thyroglobulin, tumor marker
  
429
  
LAB429
  
TGL
  
ThyroglobTM
  
  • Thyroglobulin antibody screen
  • Thyroglobulin tumor marker

Specimen

  

Biotin, commonly found in hair, skin and nail supplements and multivitamins, may interfere with assay. It is recommended that patients abstain from any biotin containing supplement for 12 - 24 hours prior to blood draw.

 

  
Serum
  
  
1.5 mL
  
0.5 mL
  

Immediately following collection, thoroughly mix sample by gently inverting 5 times

  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  3. Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum 
  4. Freeze
  
Lithium heparin (Li hep) plasma
EDTA plasma
  
  

Lt green/lavender:

Immediately following collection, mix by inverting 8 - 10 times to prevent clotting

  

Lt green/lavender:

  1. Spin 
  2. Transfer plasma to a False bottom plasma/serum transport vial/tube (AHL), labelled as the appropriate plasma type, within two (2) hours of sample collection
  3. Freeze

Red:

  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection
  4. Freeze
  

False bottom plasma/serum transport vial/tube (AHL)

  

Frozen (preferred) - 30 days

Freeze/thaw cycles - stable x1

Refrigerated - 48 hours

Ambient - 8 hours

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis (some procedures)
  • Improper anticoagulant or ratio
  • Delay in transport
  • Improper storage temperature affecting results
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)

Performance

  
AHL - Immunology: Q
  
Mo, We, Fri
  
2 - 3 days
  

Immunoenzymatic Assay

Clinical and Interpretive info

  

Thyroglobulin tumor marker:

Athyrotic: <0.1 ng/mL

Intact thyroid: ≤ 33 ng/mL

Thyroglobulin Ab: 1.59 - 50.03 ng/mL

  
Biotin supplement interference - see patient preparation

Billing

  
84432 - Thyroglobulin, tumor marker
86800 - Thyroglobulin antibody screen

Tracking

  
03/16/2011
  
11/06/2019
  
04/04/2022