“Calculation of the inferior vena cava’s inhalation collapse: （Max D-Min D）/Max D× 100%。”Zheng Ren explained when he saw principal Zhang’s blank expression.
“Place the probe under the sword to the right, and the scan plane is parallel to the inferior vena cava. The image shows the right atrium, inferior vena cava, and hepatic vein.
Under normal circumstances, the inferior vena cava would obviously collapse with deep inhalation. The diameter of the inferior vena cava was less than 2.1 cm, and the rate of inhalation collapse was& gt, 50%, which was 3 mmhcg.
When the right atrial pressure is high, the diameter can be& gt, 2.1 cm, and the rate of inhalation collapse is
“Calculation of the inferior vena cava’s inhalation collapse: （Max D-Min D）/Max D× 100%。”Zheng Ren explained when he saw principal Zhang’s blank expression.
“Place the probe under the sword to the right, and the scan plane is parallel to the inferior vena cava. The image shows the right atrium, inferior vena cava, and hepatic vein.
Under normal circumstances, the inferior vena cava would obviously collapse with deep inhalation. The diameter of the inferior vena cava was less than 2.1 cm, and the rate of inhalation collapse was& gt, 50%, which was 3 mmhcg.
When the right atrial pressure is high, the diameter can be& gt, 2.1 cm, and the rate of inhalation collapse is
