SYSTEM AND METHOD FOR MEASURING BLOOD UREA NITROGEN, BLOOD OSMOLARITY, PLASMA FREE HAEMOGLOBIN AND TISSUE WATER CONTENT

摘要

Systems and methods are provided for noninvasively measuring the levels ofurea, blood osmolarity (or Na+), plasma free hemoglobin and tissue watercontent in a patient's blood or tissue. Light of selected wavelengths ispassed through blood or body tissue and the transmitted or reflected light isdetected and the detected signals can be electronically compared andmanipulated to provide the non-invasive, continuous and quantitive display ofa patient's blood urea, blood osmolarity (or Na+), plasma free hemoglobin andtissue water content.