Q&A, 8/15
August 2015—Our laboratory is adding urine total protein to its Siemens Dimension EXL test menu. The test is being performed now at our reference lab on the Siemens Advia 1800. Our Dimension EXL method validation studies have revealed an average 40 percent positive bias over the Advia method. This bias is also evident in peer group evaluations for the quality control product we are using.