Biochemistry and Cardiac Markers
Baseline blood tests, which included a basic electrolyte panel,
C-reactive protein, and cardiac troponin I were recorded in all
participants. Blood samples were collected by a registered nurse or
advanced nurse practitioner into lithium heparin blood bottles. Blood
samples were transported to the Cork University Hospital biochemistry
laboratory within 15 minutes of being drawn and analysis of blood
samples were completed immediately upon receipt. Six hours following DC
cardioversion repeat blood samples for C-Reactive Protein and Cardiac
Troponin I quantification were collected via direct venous puncture. The
measurement of pre-cardioversion and six hours post was determined by
the Third Universal Definition of Myocardial Infarction guidelines on
‘Biomarker Detection of Myocardial Injury with Necrosis.’(19)