Calculator for fluid estimation at bedside using ultrasound by Gaurang Vaidya, MDPosted onMay 14, 2021September 12, 2021 Based on a publication- Vaidya GN. et al. [CP_CALCULATED_FIELDS id=”1″ ] . Figure 1: Supine positioning of the patient Figure 2: M-mode ultrasound of the jugular vein while patient is breathing normally. Note the respiratory variation in diameter. Figure 3: Sniff collapsibility of the jugular vein Figure 4: Algorithm to estimate right atrial pressure. RA= right atrium, IJV= internal jugular vein. Vaidya GN, et al. Indian Heart J. 2021.