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HelpTest Code HSTNI High Sensitivity Troponin I (hs-TNI)
Additional Codes
| Epic Ordering Code | LAB747 |
| NBS code | LBC01370 |
| Service code | 31054 |
Specimen Requirements
Submit only one of the following:
| Preferred: | Acceptable: |
| Yellow Top | Light Green Top |
Processing Requirements
Allow specimen to clot for 30 mins (Yellow Top) and centrifuge within 2 hours
Specimen type: Serum/Plasma
Volume: 0.5 mL
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 8 hours |
| Refrigerate | 24 hours (Preferred) |
| Frozen | 1 month |
Specimen Condition
| Gross Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
≤ 26.2 ng/L
Critical value: > 26.2 ng/L
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Exclusion diagnosis of acute myocardial infarction.
Update
Last updated 17/07/2026
LOINC Code Information
89579-7
Alias
TnI