Is there a way of testing someones dehydration level using their siliva? if not through siliva what are the best ways to test level of dehydration (taking vitals, etc.)

Thanks : Thanks for your question. Dehydration can cause there to be a lack of saliva in the mouth or under the tongue. I call it a lack of pooling. Dehydration can also be evident by a faster heart rate (called tachycardia) as well as quantity, frequency and color of urine. Hope this helps answer your question about dehydration.

Body weight: As long as you have a reference weight, body weight is the primary feature that allows calculation of the degree of dehydration. If a 20 lb kid comes into the office 2 days after a well check having had vomiting for a day, he is not dehydrated if he weighs 20 lb but is if he weighs 19. A 5% weight loss in a short time frame is water loss.