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Thyroglobulin, Serum/Plasma

Test ID: THYROG
Orderable by Ontario ND

Test

Aliases/Synonyms

TG; Thyroid Cancer Monitoring

Method

ECLIA

Method Description

Consider ordering thyroglobulin and anti-thyroglobulin together due to the interference that thyroglobulin antibodies has on the thyroglobulin assay.

Platform

Roche CobasPRO

Report Includes

Thyroglobulin

Specimens

Serum;Plasma

Test Location

St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8

Test Version

16-Aug-2023

Specimen

Specimens

Serum;Plasma

Collection Containers

Preferred

Gold top (clot activator & gel);Red top (no additive)

Acceptable

Lavender top (EDTA); Green top (Na Heparin); Green top (Li Heparin)

Sample Volume

1 mL

Minimum Volume

0.5 mL

Collection & Handling

Handling Information

Store and send frozen

Stability

Ambient 14 days
Refrigerated 14 days
Frozen 2 years

Rejection Criteria

Hemolysis Present

Test Version

16-Aug-2023

Performance / Interpretation

Method

ECLIA

Method Description

Consider ordering thyroglobulin and anti-thyroglobulin together due to the interference that thyroglobulin antibodies has on the thyroglobulin assay.

Platform

Roche CobasPRO

Turnaround Time

9 days

Results

Name Units Reference Range Conversion Factor
Thyroglobulin µg/L
  • Normal Population: 3.50 - 77.00
  • Post Ablation: <1.00
pmol/L x 0.67
Lowest reportable result: 0.04 µg/L
Circulating Thyroglobulin Antibodies may interfere with measurement of Thyroglobulin. Consider ordering thyroglobulin and anti-thyroglobulin together.

Test Location

St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8

Test Version

16-Aug-2023

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
THYROG 28730Thyroglobulin ug/L

Test Version

16-Aug-2023