Final answer:
Dehydration can be caused by a decreased fluid intake or a significant loss of fluid. Symptoms of dehydration include thirst, dizziness, headaches, low blood pressure, fatigue, and low urine output.
Step-by-step explanation:
Dehydration occurs when there is a loss of water from the body without adequate replacement.
Causes of dehydration:
- A significant loss of fluid
- Excessive water loss due to vomiting, diarrhea, excretion of large quantities of urine and sweat
- Injection of hypertonic solution
- Deprivation of water during desert travel, extreme weakness, and mental patients refraining from drinking water
- Concentration of electrolytes of the body fluids
Dehydration can lead to symptoms such as thirst, dizziness, headaches, low blood pressure, fatigue, and low urine output.