Diagnostic dry reagent tests capable of reacting with a single drop of whole blood and reporting both glucose and light-scattering analytes, such as chylomicrons, are taught. Such dry reagent tests may employ electrochemical detection methodologies, optical detection methodologies, or both methodologies....http://www.google.com.au/patents/US7758744?utm_source=gb-gplus-sharePatent US7758744 - Dual glucose-turbidimetric analytical sensors
