Final answer:
The symptoms of SIADH are typically related to low sodium levels in the blood, with common signs including headaches, confusion, muscle weakness, nausea, and seizures in severe cases.
Step-by-step explanation:
The symptoms associated with SIADH primarily result from the excessive retention of water leading to dilutional hyponatremia, which is a lower-than-normal sodium concentration in the blood. Some common symptoms of SIADH include:
- Headache
- Impaired cognition, confusion, or memory lapses
- Muscle weakness/cramps
- Nausea and vomiting
- Irritability or mood changes
- Seizures or other neurological signs in severe cases
Hyponatremia can cause water to move into cells, leading to swelling or edema, particularly in the brain, which is a serious condition and may manifest as increased intracranial pressure.