An apparatus for analyzing a test liquid includes an inlet chamber, a preparation chamber and an analysis element. The inlet chamber receives the test liquid. Test liquid is configured to be brought from the inlet chamber via the preparation chamber onto the analysis element. A volume of the preparation chamber is capable of being increased, the test liquid being sucked into the preparation chamber from the inlet chamber due to an increase of the volume of the preparation chamber. A fixed quantity of test liquid is thus sucked into the preparation chamber, which enables precise analysis results possible.
