Remove the test strip from the meter and check that the circular window on the back of the strip is even in color. If it is not even,

then you have not applied enough blood. You will need to repeat the test.

Top View:                                                                                                                                               Bottom View:


The white region between the two black regions needs to be                                                       The circular window on the back of the strip needs to be fully covered in blood!                                                                                                                    of uniform colour