90% of plasma is water. The remaining 10% contains nutrients, electrolytes, gases, wastes, albumin, clotting factors, antibodies, enzymes, and hormones. The pH of the plasma is steady at about 7.4.

血浆的90%是水。剩下的10%包含营养素，电解质，气体，废物，白蛋白，凝血因子，抗体，酶和激素。血浆的pH稳定在约7。4。