Patent ID: 8211379

Claim:
A test strip comprising: a base substrate having a length extending between first and second end edges, and a width defined between a first side edge and a second side edge, the base substrate having a reagent layer disposed thereon; a chamber cover member overlying the base substrate, and a body cover member separate from the chamber cover member and overlying the base substrate, the chamber cover member and the body cover member being spaced apart at a slot location and defining a slot therebetween, the slot being spaced from both the first and second end edges of the base substrate and extending across the entire width of the substrate from the first side edge to the second side edge, the chamber cover extending from the slot toward the first end edge of the base substrate, and the body cover member extending from the slot toward the second end edge of the base substrate, a sample receiving chamber disposed between the base substrate and the chamber cover member and extending from the first end edge of the base substrate to the slot between the chamber cover member and the body cover member, the reagent layer being disposed on the substrate within the sample receiving chamber at least between the first end edge of the substrate and the slot, the slot being in communication with the sample receiving chamber and defining a vent opening that allows air to escape as fluid enters the sample receiving chamber.