Question

doctors give patients iv fluids that have the same salt and water balance as their blood. how does this help the patients body keep homeostasis? it blocks water from moving, so the cells are unaffected by their surroundings it forces extra water into the cells, making them expand to store more nutrients it pulls water out of the cells, helping them shrink so they dont burst it keeps water moving in and out of cells evenly, so the cells stay the right size and keep working normally

Explanation:

IV - fluids with the same salt - water balance as blood create an isotonic environment. In an isotonic environment, there is no net movement of water into or out of cells by osmosis. This helps cells maintain their normal size and function, thus contributing to homeostasis. The first option is incorrect as water can still move in an isotonic solution. The second option is wrong because it doesn't force extra water into cells. The third option is incorrect as it doesn't pull water out of cells. The fourth option is correct as it keeps water moving in and out evenly.

Answer:

It keeps water moving in and out of cells evenly, so the cells stay the right size and keep working normally