How to Treat Dehydration. Dehydration can occur when a person's output of fluids exceeds the amount of fluids taken in. People often aren't aware that they are suffering from dehydration. Knowing how to spot dehydration and how to rehydrate the body can help prevent the condition from becoming serious.
Know when dehydration is a danger. People are most commonly at risk for dehydration when they over exert themselves, are exposed to extreme heat or have been ill (particularly if the illness involves vomiting or diarrhea).
Recognize early signs of dehydration by keeping a close eye on the person's passing of fluids and his vital signs. Symptoms of dehydration include concentrated or deeply yellow urine, dry mouth, irritability, thick saliva, weakness and confusion. A person's heart rate may increase, blood pressure can drop and he might feel dizzy when standing.
Treat minor cases of dehydration by increasing fluids. Beverages that help to balance electrolytes are even better than water. Products such as Gatorade for adults and Pedialyte for children are often recommended by physicians. If these products are not available, add a teaspoon of salt to a glass of water to help the patient retain the fluid.
Seek medical attention if a person is vomiting or has diarrhea for more than 2 days, has a high fever or is unable to hold down fluids.