Location: Portland Metropolitan Area, Oregon, Pacific Northwest, United States, North America Population: 530,000 Latitude of center: 45Â° 33' 36.3 (45.5601Â°) north
The signs and symptoms of dehydration include: 1  dizziness. 2  headache. 3  dark urine (may have a strong odor)  inability to 1  urinate. dry mouth and nose. 2  weakness. nausea and vomiting.  skin that does not flatten when pinched and released.
Dehydration symptoms generally become noticeable after 2% of normal euhydration water volume has been lost. The symptoms of dehydration become increasingly severe with greater water loss. Heart and respiration rates begin to increase to compensate for decreased plasma volume and blood pressure, while body temperature may rise because of decreased sweating.