Lets say a patient black outs suddenly has hallucinations and goes completely numb
what is the cause?

this is for medicine textbook

Explanation: hallucinations can be caused by various factors which are

Epilepsy:The seizures that go along with this disorder can make you more likely to have hallucinations. The type you get depends on which part of your brain the seizure affects.

parkinson's disease:Up to half of people who have this condition sometimes see things that aren't there.

Alzheimer's disease,and other forms of dementia, especially Lewy body dementia. They cause changes in the brain that can bring on hallucinations. It may be more likely to happen when your disease is advanced.

Migraines. About a third of people with this kind of headache also have an "aura," a type of visual hallucination. It can look like a multicolored crescent of light.

Brain tumor. Depending on where it is, it can cause different types of hallucinations. If it's in an area that has to do with vision, you may see things that aren't real. You might also see spots or shapes of light. Tumors in some parts of the brain can cause hallucinations of smell and taste.

communicate with the patient and explain every step before proceeding to do so