Intermediate
Technical
IVT
hyponatremic dehydration
Fluid loss with disproportionate sodium depletion, commonly seen in infants with gastroenteritis or renal salt-wasting conditions.
Full Definition
Hyponatremic dehydration occurs when fluid losses are accompanied by disproportionate sodium losses, resulting in serum sodium levels below 130 mEq/L. In pediatric patients, this condition is frequently encountered in gastroenteritis, renal salt-wasting disorders, or inappropriate fluid replacement. This type of dehydration poses particular risks including cerebral edema and seizures, requiring careful correction to avoid complications from too rapid sodium normalization.
Usage
Usage note: Requires careful electrolyte monitoring during correction.
In Context
- "The infant presented with hyponatremic dehydration following three days of vomiting and diarrhea." — Emergency department note
- "Gradual sodium correction was planned to treat the patient's hyponatremic dehydration safely." — Treatment protocol
Also known as
hypotonic dehydration
Contrasted with
hypernatremic dehydration
isotonic dehydration
Don't confuse with
hypovolemic shock
hypernatremic dehydration