Dehydration is the condition that results from excessive loss of water from the body. The body requires a certain amount of water and other elements, called electrolytes, to function properly. Fluids are lost through sweat, urine, bowel movements, and breathing. Drinking and eating both help to replace fluids, especially drinking. When the body loses too much water and it is not replaced, dehydration sets in.
Dehydration occurs when fluid loss exceeds fluid intake. Factors that contribute to dehydration include:
The doctor will ask about your symptoms and medical history, and perform a physical exam. This will probably include measuring your vital signs. To help provide information for the doctor, keep a diary of:
Your daily weight
Number of times you have vomited or moved your bowels
Your fluid and food intake
Your urine output
Self-treatments you have tried
Tests may include:
Stool sample—to look for the cause of diarrhea
Urine tests—to check the concentration of the urine
Blood tests—to check body fluids and body chemistry
Therapy aims to rehydrate the body, replace lost electrolytes, and prevent complications. If an underlying cause is identified, therapies to treat that condition may be included if appropriate.
To help replace fluids:
Drink a small amount of clear liquid every 15 to 30 minutes. For small children, this may mean 1 teaspoon every few minutes initially.
Increase the amount of liquid as you can tolerate it.
Stick with clear liquids, such as sports drinks or a special electrolyte solution, for the first 24 hours.
If you cannot keep any liquids down, try sucking on ice cubes.
Avoid beverages with alcohol or caffeine, such as coffee, tea, and soft drinks. These promote fluid loss.
Avoid sweetened drinks, fruit juices, and gelatin because they can make diarrhea worse.
If you are unable to adequately replace fluids and your condition does not improve, contact your doctor. You may need intravenous fluids or other medical care.
Dietary modifications include:
If you have diarrhea but no vomiting, continue eating small amounts of food frequently.
If vomiting, once you can keep fluids down, slowly and gradually return to a regular diet.
Eat a well-balanced diet with fruits, starches, and fluids.
Only eat small amounts of red meat and proteins.
Avoid spicy foods and milk products until your symptoms are gone.
Medications may include:
Anti-emetics—for severe vomiting
Antidiarrheal medicine—for severe diarrhea or abdominal cramping
Antibiotics—for severe diarrhea caused by a bacterial infection
If you are diagnosed with dehydration, follow your doctor's
To prevent dehydration:
Drink plenty of fluids, even if you are busy or sick.
Drink fluids regularly while exercising or when outdoors on a hot day. Stop frequently for fluid breaks.
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a