Fig. 1From: Emergency department non-invasive cardiac output study (EDNICO): a feasibility and repeatability studyStudy participant pathway. SV = stroke volume; CO = cardiac output; PVUT = plethysmography vascular unloading technique; CCABF = common carotid artery blood flow; IVCCI = inferior vena cava collapsibility index; LVOT VTI = left ventricular outflow tract velocity time integral; SSAD = suprasternal aortic DopplerBack to article page