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在进行ＣＴ增强扫描时 ,因所用造影剂属高渗药物 ,其浓度高 ,粘度大 ,易结晶 ,注射时用 16号头皮针加压快速注入 ,极易损伤血管[1] ,致使造影剂注射时或注入后出现血液和造影剂部分外渗 ,进入皮下间隙后使细胞膜内外的渗透压失去平衡 ,细胞外渗透压高吸出细胞内水分 ,使细胞严
In the CT enhanced scan, due to the contrast agent is hypertonic drugs, its high concentration, viscosity, easy to crystallize, the injection of 16 scalp acupuncture rapid injection pressure, can easily damage the blood vessels [1], resulting in contrast agent injection When or after injection of blood and contrast agent part of the extravasation, into the subcutaneous gap after the osmotic pressure inside and outside the cell membrane out of balance, high extracellular osmotic pressure aspiration of intracellular water, the cell strict