Venous excess ultrasound: A mini-review and practical guide for its application in critically ill patients

Figure 10 Graphic representation of the interpretation of the venous excess ultrasound grading system. Grade 0: Inferior vena cava (IVC) < 2 cm signifying no congestion. A: Grade 1: IVC ≥ 2 cm and any combination of normal or mildly abnormal waveforms, reflects only mild congestion; B: Grade 2: IVC ≥ 2 cm with one severely abnormal waveform, indicating severe congestion in a single organ; C: Grade 3: IVC ≥ 2 cm with ≥ two severely abnormal waveforms, denotes severe congestion affecting at least two organ system.