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GENERAL INFORMATION

  **QUICK REFERENCE** 

HMC COLLECTION TUBES

 

HMC LABORATORY INFORMATION

HMC LABORATORY SERVICES

SPECIMEN COLLECTION and  TRANSPORT

PATHOLOGY REQUISITIONS (Printable Forms)

FORMS (printable Patient Instructions)

 

 

 

Mayo Clinic Laboratories

Test Code TRTHS Troponin T, High Sensitivity

Performing Laboratory

Hunterdon Medical Center

Useful For

High sensitivity Cardiac Troponin T (cTnT) is useful for monitoring acute coronary syndromes including myocardial infarction and is associated with an improved rule-out process.

Cardiac troponin T is a cardio specific, highly sensitive marker for myocardial damage. Cardiac troponin T increases rapidly after acute marocardial infarction (i.e. it can be detected within one hour if using a high senitivity assay) and may persist for up to for two weeks thereafter.

If clinically indicated repeat troponin 2 hours after initial collection..

 

Note: ED Troponin HS Order Algorithm

  • A serial testing algorithm is available for ED patients only:TRTWD. Troponin-T High Sensitivity with Delta.
  • A second Troponin test is performed and a Delta change from the baseline result is reported.
  • A third serial test may be ordered, if indicated.

Specimen Requirements

 Container/Tube                 
 Preferred   PST (Li Hep) Gel- Mint Green Top  
 Acceptable   Green Top
 Specimen Volume   1.0mL
 Minimum Volume   0.5mL

Specimen Type

Lithium Heparin Plasma

Specimen Transport

Ambient

Specimen Stability

  Temperature   Time Frame  
  Refrigerated 2-8°C     24 hours

Reject Specimen Due To

Gross hemolysis

Day(s) Test Set up

Monday through Sunday

Reference Values

 

  Reference Values   * Note difference in units
  Female   ≤ 14ng/L*
  Male   ≤ 22ng/L*
  Critical Value   >52 ng/L*
  Indeterminate Range   
  Female   15-52 ng/L
  Male   23-52 ng/L
    Troponin is moderately elevated but does not confirm myocardial injury  

Test Algorithm

If clinically indicated repeat troponin  2 hours after initial collection

Methodology

Electrichemiluminescence Immunoassay: ELCIA

CPT Code

84484

Loinc Code

67151-1