Blood gas test card, blood gas test instrument and test method

The invention is applicable to the field of medical in vitro diagnosis equipment, and discloses a blood gas test card, a blood gas test instrument and a test method. The blood gas test card comprises a card body, wherein a conveying passage is arranged on the card body; a first interface, a second interface and a third interface are respectively formed in the conveying passage; one end of the third interface is communicated with a liquid conveying passage; a detection part is arranged on the conveying passage positioned between the second interface and the third interface; a detection electrode plate is connected to the position of the detection part. The blood gas test instrument comprises a casing and the blood gas test card, and also comprises a calibration assembly, a blood sampling assembly and a suction pump; an insertion hole is formed in the casing; the blood gas test card is inserted in the insertion hole; the calibrating assembly and the suction pump are arranged in the casing. The test method comprises the steps of calibrating test and blood gas detection. The blood gas test card provided by the invention can be cyclically utilized; in addition, the operation of the blood gas test instrument is simple; the detection efficiency is high; the detection cost is reduced; the convenience and the reliability in the practical use of the blood gas test instrument are improved.