Dehydration

Abnormal depletion of total body water (mild: <5% body water loss, moderate: 5–9% body water loss, severe: >10% body water loss), often with concomitant electrolyte imbalance, leading to impaired cellular and organ function and, in severe cases, hypovolemia and hemodynamic instability.

Causes

• Insufficient water intake

• Gastrointestinal fluid loss

  • Vomiting

  • Diarrhea

• Excessive sweating

• Polyuria

• Alcohol consumption