Maintenance-free, portable analyzer for K plus Na plus Cl minus iCa 2 plus iMg 2 plus (5 in 1).

Uses a single-use dry chemistry cartridge; no fluidics, minimal maintenance. Whole blood results in under 5 minutes; 100 microliter sample volume. Integrated barcode scanner, printer, and auto-calibration. Accuracy R squared greater than 0.94 versus benchtop; battery supports 50 plus consecutive tests. Test Ranges (millimole per Liter): K 1 to 15, Na 100 to 200, Cl 65 to 160, iCa 0.25 to 4, iMg 0.2 to 1.5.