Loss of large amounts of fluids & salts from the body leads to dehydration.   In Ayurvedic  view it is correlated as THRUSHNA, ayurveda do not recommend IVF.   It is treated with vata pitta samana drugs.But giving fluids is very important. Externally and internally sita[cold] prayogas are used.
   
Symptoms

• Drowsiness or confusion
• Dry mouth
• Dry skin
• Failure to urinate for several hours. Thirst, sunken eyes, low BP