Diarrhea science questions

Water is one of the most important molecule for the body.

there are three pathway (i think, please check) for our body to absorbs water. During Diarrhea, the toxin produce by microorganism blocks the pathways, as a result, our body can no longer intake water.

Diarrhea is one of the leading cause of death in developing country. the reason is that lost of water plus unable to intake water will only take a few days for the patient to die. there are many pathway failure when there is a lack of water, e.g. lost in water reduce blood pressure, and can lead to heart failure, or renal failure...

restore water level is the primary objectives for diarrhea patient, most of the patients will receive parental treatment, i.e. IV lactated ringer solution. When the body wear off with the toxin until the patient can reabsorb water.

In many developing country, these kind of parenting treatment may not be available, it may due to lack in money for the purchase of IV set, or even due to the location. the patient may located very remotely, and modern medicine is not available.

For these patients, they may try another way to rehydrate. they could try the isotonic solution if it is available, or salted fruit juicy. the body can intake water by sodium(or potassium? please check, can not remember...) glucose ATPase and rehydrate accordingly.