Table 1. Specifications for five portable and one (i-STAT) point-of-care blood lactate analysers. Radiometer ABL90 Lactate Pro Lactate Pro2 Lactate Scout+ Nova Statstrip Xpress Edge i-STAT Manufacturer Radiometer, Denmark Arkray KDK, Japan Arkray KDK, Japan EKF Diagnostics, Germany Nova Biomedical, USA Apex Biotechnology Corp Abbott Laboratories, USA Method Amperometric metabolite sensor Amperometric reagent Amperometric reagent Enzymatic amperometric Electrochemical biosensor StatStrip® Multi-well design Electrochemical biosensor Amperometric CG4+ cartridge Sample VOL, µL 65 5 0.3 0.5 0.7 3 95 Analysis time, s 65 60 15 10 13 45 280 MEAS range, mM 0.1-31.0 0.8-23.3 0.5-25.0 0.5-25.0 0.3-20.0 0.7-22.2 0.30-20.0 VOL = volume; MEAS = measurement