Final answer:
3% saline is used to correct dehydration and electrolyte imbalances, Ringer's solution helps maintain fluid balance and electrolyte levels, and dextrose-sodium solutions provide energy and hydration.
Step-by-step explanation:
3% saline is used in medicine for various purposes. It is primarily used to correct dehydration and electrolyte imbalances in patients. Saline solutions like 3% saline infusion provide sodium and chloride ions that help restore proper electrolyte levels in the body.
Ringer's solution, also known as lactated Ringer's solution, is another intravenous fluid commonly used in medicine. It contains a mixture of electrolytes, such as sodium, potassium, and calcium, which are necessary for maintaining proper fluid balance and electrolyte levels in the body. Dextrose-sodium solutions combine dextrose (a type of sugar) with sodium chloride solution. These solutions help provide energy and hydration to patients. They can be used for treating conditions like hypoglycemia and dehydration.