89579-7

LOINC code 89579-7 identifies "Troponin I.cardiac [Mass/volume] in Serum or Plasma by High sensitivity method". The "high sensitivity" troponin assays manufactured by different vendors have different analytical characteristics, including the limit of detection and 99% upper reference limit (URL). The quantitative results from different assays should not be compared to make clinical decisions, and reporting the quantitative result in isolation is not recommended. The troponin high sensitivity quantitative results should be reported with information about the assay and/or the interpretation, depending on the specific reporting method used in a given laboratory or hospital, that are included in the High sensitivity Troponin I [LOINC: 89577-1] and Troponin T [LOINC: 89576-3] panels. 1. The laboratory device 99th percentile upper reference limit [LOINC: 89581-3] 2. The laboratory device coefficient of variation at 99th percentile URL [LOINC: 89580-5] 3. The laboratory device detection limit [LOINC: 87706-8] 4. Interpretation for troponin T [LOINC: 89575-5] and/or troponin I [LOINC: 89578-9] [PMID: 25204966]

This code measures Troponin I.cardiac in Ser/Plas. It belongs to the CHEM class in the LOINC classification.

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.