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在自身稳态概念指导下,现代医学通过实验发现和确定了人的一系列生理、生化及其他机能活动的稳定值。这些参数各有一定的波动范围,也就是存在着某种限值。检查所得数据在这些参数限值范围内的则属正常的生理指标,若超出限值范围,无论偏高偏低,都可能是病态反映。根据特异性原则,结合其他一些依据,便常常可以做出临床诊断。如通常将人的正常血压参数定在90/60～140/90 mmHg 之间,认为安静状态下若经常超出这一限值,便需考虑低血压或高血压可能。特别是舒张压经常高于90～95毫米汞柱,即列为高血压。结合其他症象就可做出高
Under the guidance of its own steady-state concept, modern medicine has found and determined a series of stable values of human’s physiological, biochemical and other functional activities through experiments. Each of these parameters has its own range of fluctuations, that is, there is some limit. Check the data obtained within the limits of these parameters is a normal physiological indicators, if beyond the limits, regardless of high and low, may be pathological reflection. According to the principle of specificity, combined with some other basis, they can often make clinical diagnosis. Such as the normal human blood pressure is usually set at 90/60 to 140/90 mmHg parameters, that if quietly often exceed this limit, they need to consider the hypotension or hypertension may be. In particular, diastolic blood pressure is often higher than 90 to 95 mm Hg, which is classified as hypertension. Combined with other symptoms can be made high