Patent ID: 7908906

Claim:
A system, comprising: a holder having a substantially planar layer, a receiving portion disposed above the layer, at least one shelf disposed below the layer, and a hole within a perimeter of the receiving portion and extending through the layer; a guide having a through hole and an external shape substantially corresponding to an internal shape of the receiving portion, wherein the hole and through hole are aligned with each other and are arranged to be aligned with a test site when the guide is received in the receiving portion; electrical contact portions disposed adjacent to the at least one shelf, wherein the electrical contact portions are structured and arranged to contact portions of a circuit of a chip that comprises the test site; a device connected to the electrical contact portions structured and arranged to determine a value of an electrical property of a fluid; a display connected to the device; and a collector for collecting a fluid sample, wherein the collector is structured and arranged to extend through the through hole and the hole.