The portable blood gas analyzer cartridges GASTAT navi from Techno Medica are available in 3 different types, depending on the measurement parameters. Each cartridge contains chemically sensitive biosensors on a silicon chip, designed to conduct effective and smooth operations.

• Cartridge code 091: parameters pO2, pCO2, pH, and Hct
• Cartridge code 092: parameters pO2, pCO2, pH, Hct, Na, K
• Cartridge code 093: parameters pCO2, pH, Hct, Na, K, Ca, sO₂, ctO₂, cCa²⁺(7.4), Aa

Each cartridge, after the injection of 2 to 3 drops of blood, is inserted into the portable blood gas analyzer GASTAT navi. Before the completion of a test, predefined quality controls are activated to monitor the quality of the sample.