Write a question about the following article.

FIRST OF ALL ... Urine samples / CT scan all came back negative . No stroke , no uti 's ! The neurologist who checked it all over advised that it was his belief that what happened to her this morning was a result of her blood sugar . I signed her out because I could not stand to see my mother agitated / uncomfortable / etc lying on a hospital bed if NOTHING was wrong w / her .

Question:
What potential ailments have the doctors ruled out ?
Available choices:
[a]. None of the above choices ..
[b]. They have ruled out an issue with blood sugar ..
[c]. They have ruled out an infection ..
[d]. They have ruled out cancer ..