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Test Code LAB1230561 High Sensitivity Troponin T

Test Name Alias

Troponin T Blood Level | 8048 | HSTNT | HS TNT

Clinical Information

High Sensitive Troponin T Algorithms:

Ordering Instructions

Cardiac marker (troponin) testing should only be ordered for Inpatients or Emergency Department patients.

 

The test is not clinically appropriate for outpatient testing due to outpatient test turnaround time (specimen collection to result).

 

In cases of acute/urgent medical conditions, please have the patients evaluated at urgent care centers or the Emergency Department.

 

EPIC CODES FOR TROPONIN T TESTING

LAB1230561 HIGH SENSITIVITY TROPONIN T
LAB1230556 HIGH SENSITIVITY TROPONIN T BASELINE
LAB1230557 HIGH SENSITIVITY TROPONIN T 2 HOUR
LAB1230558 HIGH SENSITIVITY TROPONIN T 6 HOUR

Collection Instructions

Specimen Collection: Blood

Container(s): 4.5 mL Mint Green Top (Lithium Heparin Gel)

Preferred Volume to Collect: 4.5 mL

Minimum Volume to Collect: 2.0 mL

Capillary collect ok? No

Microtainer acceptable: See instructions below

Collection Instructions:

  • Troponin T specimens must be venipuncture specimens.
    • Capillary draws are not valid specimen types
    • Microtainers may be filled with a specimen that is drawn in a syringe
  • Avoid hemolysis
  • After collection, gently invert tube 8-10 times.
  • Specimen should be processed within 2 hours – See Processing Instructions

Processing Instructions (Laboratory, Outpatient or Off-site collection)

Processed Specimen: Plasma

Centrifuge/Spin: Yes

Aliquot: Yes

Minimum Process Specimen: 1.0 mL plasma

Processing Instructions:

  • Centrifuge within 2 hours after collection

Transport Temperature: Refrigerate

Specimen Stability

Ambient: 2 hours

Refrigerate: 24 hours

Frozen: aliquot plasma for longer storage

Laboratory Retention: 72 hours

 

Inpatient SIL: 1 hour (green)

Test Frequency

Available 24 hours, usual TAT 1 hour from receipt in lab.

Reference Range

Female Male Result
<14 ng/L <22 ng/L Negative
14-99 ng/L 22-99 ng/L Indeterminate
≥100 ng/L ≥100 ng/L Critical

 

Laboratory Critical Values Table

Performing Department

CHEMISTRY

Performing Department Laboratory Location

Spectrum Health Regional Laboratory, Grand Rapids, MI
Spectrum Health Big Rapids Laboratory, Big Rapids, MI
Spectrum Health Blodgett Laboratory, Grand Rapids, MI
Spectrum Health Gerber Laboratory, Fremont, MI
Spectrum Health Kelsey Laboratory, Lakeview, MI
Spectrum Health Ludington Laboratory, Ludington, MI
Spectrum Health Pennock Laboratory, Hastings, MI
Spectrum Health Reed City Laboratory, Reed City, MI
Spectrum Health United Laboratory, Greenville, MI
Spectrum Health Zeeland Laboratory, Zeeland, MI

Methodology

Electrochemiluminescence Immunoassay (ECLIA)

CPT

84484-LAB-TROPONIN T

CDM Code

4058038

Epic Test ID

1230102176

Interface Order Alias

1230561

LOINC

Troponin T: 6598-7

Reviewed Date

10/1/2019