Why do hospitals inject saline into your bloodstream instead of just water?

Question

Why do hospitals inject saline into your bloodstream instead of just water?

In: 110

Answer 1

Basically your blood is a lot more like saline than pure water. Giving you just water would cause all sorts of electrolyte imbalances. Saline doesn’t do this but still provides adequate hydration (hope this is a good explanation, I’m new at answering these)

Source: I work at a hospital