blood pH would increase
There would be no effects. Your blood is already isotonic.
An IV containing pure HCO3- in an isotonic solution would increase the blood pH. HCO3- is a base that can combine with excess H+ ions in the blood, helping to neutralize acidity and raise pH levels. This process can be beneficial in conditions such as metabolic acidosis.
Isotonic saline solution has no net effect on red blood cells (RBCs) as it has the same osmolarity as blood. This means that RBCs will neither shrink (crenate) nor swell (lyse) when placed in isotonic saline solution. The solution maintains the normal shape and function of the RBCs.
isotonic solution
Isotonic
Normal Saline Solution, or anything that contains 0.9% NaCl
The concentration of solution is same to blood it is isotonicity of blood.
: it would have no effect
An isotonic solution for human red blood cells is a solution with the same osmotic pressure as the inside of the cells. This allows the cells to maintain their normal shape and size without losing or gaining water. Common examples of isotonic solutions include saline solutions and Ringer's lactate.
An isotonic solution is defined as having the same 'osmotic pressure', or concentration, of some material, especially salts and minerals. They often help to rehydrate the body from the effects of excess sweating.
A solution is only isotonic compared to another solution. The statement that .9 NaCl is isotonic is incomplete. You are referring to the fact that it is isotonic with blood serum. This means they have the same osmotic pressure as each other which controls how they pass through the semi permeable membrane of blood vessels. .9 NaCl is isotonic with blood serum and that means that it will diffuse out of the blood vessel after IV injection in a similar fashion to the components of the blood serum itself. .9Nacl contains about 154 mOsm/L of Na and 154 mOsm/L of Cl giving the solution an osmolarity of 308 mOsm/L. The osmolarity of blood is about 300-310 mOsm/L so the two are very close and that's why .9NaCl is considered isotonic for IV solution.
When a solution has the same concentration of water molecules and solutes as a red blood cell, it is considered an isotonic solution. In an isotonic solution, there is no net movement of water into or out of the red blood cell, maintaining its normal shape and function.