Rapid blood testing system

A measurement cartridge for measuring one or more properties of a blood sample, the measurement cartridge comprising:

• a cartridge body comprising an upper surface and a lower surface, the upper surface defining a sample storage well having a top portion for receiving the blood sample, and a bottom portion for releasing at least a portion of the blood sample into one or more blood conduits;
• one or more detection chambers for receiving blood from the one or more blood conduits and providing signals for measuring the one or more properties of the blood;
• a cap hingeably attached to the cartridge body and adjustable from a first position to a second position, the cap comprising a top side and an underside, the underside comprising a plunger configured to enter the sample storage well;
• in the cap first position the measurement cartridge is configured to receive the blood sample in the sample storage well;
• in the cap second position the cartridge is configured with the plunger inserted in the sample storage well, the plunger displacing at least some of the blood sample into the one or more blood conduits;
• and
• at least one vent for releasing pressure in the one or more detection chambers.