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Test Code LAB5991 Troponin T, 5th Generation

Important Note

This test is only to be used for patients with concern for Amyloidosis.  Contact the Lab Medicine Resident for questions at 314-747-1320

For routine cardiac test analysis use Troponin I hs - LAB5997

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Electrochemiluminescent immunoassay

Literature Reference:

Package insert: Elecsys Troponin T Gen 5 reagent. Roche Diagnostics, Indianapolis, IN

Specimen Requirements

Specimen Type: Plasma
Container/Tube: Mint green top (Lithium Heparin)
Specimen Volume: Full tube

Collection Instructions: Hemolyzed specimens are not acceptable.

Day(s) Test Set Up

Monday, Wednesday, and Friday
Turnaround Time:
STAT: Not Available
Routine: Batch testing Monday, Wednesday, and Friday when received by 13:00.

Reference Values

Male:

0-1 month: 20-100 ng/L

>1 month - 6 months: ≤ 39 ng/L

>6 months - 1 year: ≤ 19 ng/L

> 1 year - 15 years: ≤ 13 ng/L

> 15 years: ≤ 22 ng/L

Female:

0-1 month: 20-100 ng/L

>1 month - 6 months: ≤ 39 ng/L

>6 months - 1 year: ≤ 19 ng/L

> 1 year - 15 years: ≤ 13 ng/L

> 15 years: ≤ 14 ng/L

Critical result (automatic call-back): > 200 ng/L 
 

Literature References:

Thygesen K, Alpect JS, Jaffe AS, et.al. Fourth Universal Definition of Myocardial Infarction. J Am Coll Cardiol 2018;72:2231-2264.

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only

Alternate Tube(s):

Lavendar top (K2 EDTA)

Stability:

4 days refrigerated

Laboratory Processing Instructions:

Test performed in BJH Core Lab.  Processed by automated line for delivery to the Cobas D off-line analyzer.  Completed specimens are stored refrigerated for 5 days. 

Test Classifications and CPT Coding

84484-Troponin

Specials Instructions

See Analyte Stability Chart under General Information for a complete list.