Is the Confirmatory Test Always Right? Sometimes Immunoassays Know What They Are Talking About

Affiliations

• ¹ Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA.
• ² Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA; Kaiser Permanente Washington Laboratories, Renton, WA, USA.
• ³ ARUP Institute for Clinical and Experimental Pathology, ARUP Laboratories, Salt Lake City, UT, USA.