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Is this a neurological disorder or possible something else?

My father is 69 years old and has had two grand mal and about five focal seizures since March 2008. His sodium levels had dropped to the low 120s - currently it is 136. He is unable to walk because he falls from having low blood pressure (80s/30s-40s) when he stands. He is having difficulty with short-term memory, confusion, and at times, hallucinations. He says his head feels "foggy". He has had five CT scans, two MRIs, two spinal taps, one EEG, and two EKGs - everything shows normal. Is it possible that there is something else, other than a neurological disorder, causings his dementia-like symptoms?
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Avatar universal
Hello Dear,

Your father has had an episode of hyponatremia.
Sodium helps maintain nerve and muscle function, and also helps to maintain blood pressure.
As the brain is very sensitive to sodium levels, low sodium causes confusion and lethargy. The patient may feel nauseated, and experience muscle twitching, which can progress to seizures. Eventually, severe hyponatremia can lead to coma and death.

Symptoms of moderate hyponatremia include tiredness, disorientation, headache, muscle cramps, and nausea. Severe hyponatremia can lead to seizures and coma. These neurological symptoms are thought to result from the movement of water into brain cells, causing them to swell and disrupt their functioning.

Take care
251991 tn?1239296030
What about Adrenals, Low cortisol. I had that happen to me and it took 5 months for it to get figured out.
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