When do you want to use Sodium Chloride, dextrose, or lactated ringers?  What is the difference between them?

What is 0.9% Sodium Chloride? 0.9% Sodium Chloride in simple terms is salt water. It's a solution of sodium chloride (salt) and water for injection. Each mL contains sodium chloride 9 mg.
USE: Works well at alleviating dehydration symptoms

What is dextrose 5%? Dextrose in simple terms is sugar water. It's a solution of glucose (sugar). Dextrose 5% in water is injected into a vein through an IV to replace lost fluids and provide carbohydrates to the body.
USE: This fluid supports hospitalized patients who can’t eat normal food by supplying them with calories. 

What is Lactate Ringers? Lactate Ringers is a form of solution that includes sodium chloride, potassium chloride, calcium chloride, and lactate in the form of sodium lactate.
USE: Helps people with critical health issues, extensive burns, severe injuries or major loss of blood.