![]() In clinical settings, the need to draw blood typically requires trained personnel to draw the blood, carefully and properly label it, handle it and the like. Patients associate this procedure with pain, a factor that can have adverse implications for patient compliance in home-based assessments. Standard approaches to chemically-based diagnostic screening and analysis typically involve blood tests and urine tests.īlood tests of course require that blood be drawn. ![]() The importance or benefits of measuring the presence or concentration of chemical constituents in the body to aid in assessing a patient or subject's physiological or pathophysiological state is well known in the medical and diagnostic communities. The present invention relates to apparatuses, systems, and methods for sensing or measuring chemical components or constituents (e.g., analytes) in the breath of a patient or “subject,” and preferably endogenous analytes in breath, and correspondingly, to devices and methods for regulating the flow of the breath sample during the pre-measurement capture process and/or during such sensing or measurement. Any and all applications for which a foreign or domestic priority claim is identified in the Application Data Sheet as filed with the present application are hereby incorporated by reference under 37 CFR 1.57. 19, 2016, which are hereby incorporated herein by reference in their entirety. 31, 2016, which claims the benefit of U.S. This application is a continuation of U.S. INCORPORATION BY REFERENCE TO ANY PRIORITY APPLICATIONS
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