Normal Saline 0.9% is called an isotonic solution. A 0.0% saline solution is called a hypotonic solution. A solution of this concentration would cause water to diffuse into the red blood cells and cause them to burst open. A 10% saline solution is called a hypertonic solution. A solution of this concentration would cause water to diffuse out of the red blood cells, making them shrivel up and shrink.
It is saline that has twice the concentration of salt as normal saline. Normal saline is 0.9% NaCl, so twice normal is 1.8% NaCl. Now I have a question. Is this ever given to patients?
Saline solution is 9 grams of sodium chloride (NaCl) dissolved in 1000ml water. The mass of 1 millilitre of normal saline is 1.0046 gram at 22 °C. The molecular weight of sodium chloride is approximately 58.5 grams per mole, so 58.5 grams of sodium chloride equals 1 mole. Since normal saline contains 9 grams of NaCl, the concentration is 9 grams per liter divided by 58.5 grams per mole, or 0.154 mole per liter. Since NaCl dissociates into two ions - sodium and chloride - 1 molar NaCl is 2 osmolar. Thus, NS contains 154 mEq/L of Na+ and Cl−. It has a slightly higher degree ofosmolarity (i.e. more solute per litre) than blood.Nonetheless, the osmolarity of normal saline is a close approximation to the osmolarity of NaCl in blood.Saline is also used in I.V. therapy, intravenously supplying extra water to a dehydrated patient or supplying the daily water and salt needs of a patient who is unable to take them by mouth.
What will happen to a red blood cell that is placed in a solution of 90 percent water and 10 percent salt is that the salt will decrease in volume due to osmosis. Meanwhile the water will enter the red blood cell, making it swell up.
it's hypotonic
hypotonic water rushes towards
it is 1/5 saline
0.05 into percent
2400
no
Dilatin
hyper
560mosmol/L
hypertonic effect
Yes this saline is a hypertonic solution but 3% saline is also not normal. There is nothing "normal" about it. There is only one "normal saline" and that is 0.9%.
Sodium chloride 0.9 percent and normal saline are not quite the same solution. While they share the same osmolality, sodium chloride contains more salt.
How do we prepare a normal saline?
Yes this saline is a hypertonic solution but 3% saline is also not normal. There is nothing "normal" about it. There is only one "normal saline" and that is 0.9%.