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人体内既有酸又有碱,二者的浓度时刻都在变化着,成为矛盾对立的统一体。正常人血浆的pH值经常维持在7.35～7.45之间,平均为7.4,略偏碱。如小于7.35称为酸中毒;大于7.45称为碱中毒。正常人体维持血浆pH值在正常范围的调节功能,称之为酸碱平衡。血液的酸碱平衡是靠血液的缓冲系统,最重要的一对缓冲物质为[HCO_3~-]和[H_2CO_3]、肺的呼吸和肾的排酸来调节的。如发生失调则会出现如下异常、
There are both acids and alkalis in the human body, both the concentrations of which are changing momentarily and become the unity of contradiction and opposition. Normal plasma pH is often maintained at 7.35 ~ 7.45, with an average of 7.4, slightly alkaline. Such as less than 7.35 known as acidosis; greater than 7.45 known as alkalosis. Normal human body to maintain the normal range of plasma pH value regulating function, called acid-base balance. The acid-base balance of blood depends on the blood buffer system, the most important pair of buffer substances being [HCO 3 -] and [H 2 CO 3], lung respiration and renal excretion. In the event of disorders there will be the following anomalies,