The First Symptoms of Dehydration

Illness, lack of fluid intake and heat all contribute to dehydration, which can occur in any climate at any temperature. Knowing the signs and symptoms allows you to seek treatment before dehydration becomes severe.

Common Symptoms

Symptoms of dehydration include decreased urination, decreased sweating, dry mouth and absence of tears. Other signs may involve muscle cramps, lightheadedness, dizziness, nausea and vomiting.

Severe Symptoms

Symptoms of more severe dehydration include confusion and weakness, which can result from decreased blood flow to the brain and organs.

Worst Cases

In the most advanced cases of untreated dehydration, coma and organ failure can result.

Diagnosing Dehydration

A quick check of the skin's elasticity can help determine if a person is dehydrated. When skin is gently pinched, it should return to place quickly. If the skin remains wrinkled even slightly after being released, the person may be dehydrated. Clinical diagnostic tests include urinalysis, blood test for electrolyte abnormalities and vital signs, especially blood pressure and pulse.

Considerations

Urine should be almost clear or only slightly yellow-tinged. In cases of dehydration, the urine appears darker or more concentrated. Watch for changes in urine color, especially after being outdoors for extended periods of time, during illness or in warmer months.

References

• Medicinenet