Patent ID: 7494818

Claim:
A method of determining concentrations of glucose, triglycerides and HDL from a single blood sample, said method comprising: (a) contacting the single blood sample with the top surface of an elongate disbursement layer and spreading the sample substantially throughout the entire length of the disbursement layer; (b) delivering the blood sample from the disbursement layer to a first stack, a second stack and a third stack, each of said first, second and third stacks positioned adjacent to and in constant contact with the disbursement layer wherein each of said first, second or third stacks could be of a different height and wherein a blank layer is introduced to any one of or combinations of stacks such that the height of said first, second or third stacks are substantially equal and coplanar, at least one of said stacks including said blank layer, said blank layer being a different layer than said disbursement layer (c) moving the sample downward through said stacks and including through said blank layer in a direction substantially normal to the plane defined by the stacks; and (d) producing a colored response at the bottom of each of said three stacks, said colored response at the bottom of said first stack being proportional to the concentration of glucose in said blood sample, said colored response at the bottom of said second stack being proportional to the concentration of triglycerides in said blood sample, and said colored response at the bottom of said third stack being proportional to the concentration of HDL in said blood sample.