Systems and methods for a versatile electrochemical test strip that may include one or more assays for different analytes in the same test strip

A test strip and meter combination system for electrochemical testing of a blood analyte, the system comprising:

• a first test strip including:
• a first receiving port, the first receiving port for receiving a blood sample, the first receiving port at a first end of the first test strip;
• a first electrode and a second electrode, the first and second electrodes proximate to the first receiving port;
• a first contact and a second contact, the first and second contacts at a second end of the first test strip, the first and second contacts interconnected with the first and second electrodes, respectively;
• and
• a second receiving port, the second receiving port proximate to the first receiving port of the first end of the first test strip;
• a third electrode and a fourth electrode, the third and fourth electrodes proximate to the second receiving port;
• and
• a third contact and a fourth contact, the third and fourth contacts at the second end of the first test strip and interconnected with the third and fourth electrodes, respectively;
• a reference electrode;
• a second test strip including:
• a third receiving port, the third receiving port for receiving a blood sample, the third receiving port at a first end of the second test strip;
• a fifth electrode and a sixth electrode, the fifth and sixth electrodes proximate to the third receiving port;
• a fifth contact and a sixth contact, the fifth and sixth contacts at a second end of the second test strip, the fifth and sixth contacts interconnected with the fifth and sixth electrodes, respectively;
• and
• a meter, the meter having a test strip receiving port shaped to receive one of the first test strip and the second test strip, the meter including a plurality of contacts, when the first test strip is inserted a first portion of the plurality of contacts positioned to interface with the first and second contacts;
• the reference electrode and meter are configured to provide a fill indication when reached by a sample, wherein a second portion of the plurality of contacts are further positioned to interface with a fifth and sixth contact, and when the second test strip is inserted the first portion of the plurality of contacts interfacing with the fifth and sixth contact and the second portion of the plurality of contacts are unused when interfacing with the first test strip, wherein the meter is configured to receive a first chip associated with the first test strip, the first chip containing instructions executable by the meter and configuring the meter to give an error code when the first chip is inserted into the meter and the second test strip is inserted into the meter, based on the first and second test strip include a different number of contacts.