为什么要把盐水挂在静脉里？

随着医疗技术的不断进步，盐水成为了一种常见的治疗手段。在许多情况下，我们会看到医生在给患者进行治疗时将盐水挂在静脉里。那么，为什么要选择静脉输液而不是其他途径呢？下面就让我们来探讨一下这个问题。

静脉注射是一种通过将药物或液体直接输送到静脉内部的方式，以达到快速治疗的目的。与口服药物相比，静脉输液可以绕过胃肠道消化吸收过程，使药物更快地进入血液循环。这对于紧急情况下的治疗非常重要，因为它可以迅速提供所需的药物或营养物质。此外，通过静脉输液，药物可以以更高浓度进入血液，从而增加其效果。

英文翻译对照：

Why is saline solution hung in veins?

With the continuous advancement of medical technology, saline solution has become a common method of treatment. In many cases, we can see doctors hanging saline solution in patients' veins for treatment. So why choose intravenous infusion instead of other methods? Let's explore this question below.

Intravenous injection is a method of delivering medication or fluids directly into the veins to achieve rapid treatment. Compared to oral medications, intravenous infusion can bypass the gastrointestinal digestion and absorption process, allowing the medication to enter the bloodstream more quickly. This is crucial for emergency situations as it can rapidly deliver the required medication or nutrients. Additionally, through intravenous infusion, medications can enter the bloodstream at higher concentrations, thereby enhancing their effectiveness.