Traditional Culture Encyclopedia - Traditional virtues - What is the central venous volume?
What is the central venous volume?
The zero point should be selected first before pressure measurement. When the patient lies on his back, the zero point of the piezometer should be located at the level of the midline of the patient's fourth rib axil. Then the piezometer tube is filled with liquid, and then the infusion set is clamped to make the piezometer tube communicate with the vein. When the liquid column slowly descends to a stable position, the centimeter number of its water column is the central venous pressure. After the measurement, clamp the piezometer and open the infusion set to keep the vein unobstructed. Normal value of central venous pressure and its clinical significance
The normal value of CVP is 0.49-1.18kpa (5-12cmh2o). If CVP is 0. 196-0.49kpa(2-5cmH2O), it means that the right atrium is not well filled or the blood volume is insufficient. If CVP is1.47-1.96kpa (15-20cmh2o), the right heart function is not good.
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