Thanks for posting your query.
You should go for CT scan
brain, serum electrolytes, blood sugar, renal function test and liver function test.
If her cardiac part is normal then there may be abnormality in all these investigations.
You should also consult with physician and neurologist
At times, septicemia/ typhoid psychosis
is persisting in body and may cause altered sensorium till the control of infection.
With pray of rapid recovery,
Dr. Mayank Bhargava