DISPOSABLE UREA SENSOR AND SYSTEM FOR DETERMINING CREATININE AND UREA NITROGEN-TO-CREATININE RATIO IN A SINGLE DEVICE

摘要

A disposable urea sensor has a laminated body having a fluid sample inlet end and an electrical contact end, a fluid sample inlet, a substantially flat sample chamber in communication between the fluid sample inlet and a vent opening, the sample chamber being adapted to collect a fluid sample through the fluid sample inlet, a working electrode and a reference electrode within the sample chamber, and a reagent matrix disposed on the working electrode wherein the reagent matrix contains urease.