Loss of consciousness

When someone is knocked unconscious, how long of a delay can there be between the impact and the loss of consciousness?

My diagnoses have been: concussion (with brief loss of consciousness), post concussion syndrome, swelled dura mater. When will my injuries level off?

2nd episode of unexplained loss of consciousness, what could be the causes in a healthy young female? Mri and EEG negative 11 years ago first episode.

How long do I have to wait to return to school after a confirmed concussion? There was loss of consciousness and nausea.

A week ago10 month son had a loss of consciousness,bend back of his body, stiffness.After undergoing x-rays is my son at cancer risk?

A week ago10 month son had a loss of consciousness,bend back of his body, stiffness.Can my son be at cancer risk if he undergoes several x-rays?

Stood up from a crouch and hit top of head on edge of steel shelf. Small lump, no loss of consciousness or stars. Mild pain, any concern for bleed?

I am experiencing loss of consciousness, headache (quality: dull or achy) (side: front, left) (severity: mild) (occurred: > 3 hours) and neck pain.

Can a blow to the head with no loss of consciousness have any brain damage ?

How common are subdural hemotomas? 25yrOld female, non drinker, non smoker, hit back of head on ceiling Monday, no blood no loss of consciousness.

I fainted and bumped my head hard. loss of consciousness for about 1-2 mins. now I have a stiff and sore neck and headache. Should I be concerned ?

In case of loss of consciousness for 2 or 3 minutes and have happened thrice over last 45 years , as I have high BP does it call for medication to prevent possible stroke ? Thanks?

I bumped the back of my head/neck on my desk. Not really hard. Barely felt it. No loss of consciousness, vomiting, etc. feel fine. Back of head does hurt a bit but nothing severe. Ive been up all day. Eating and reading. Should I be fine?

Pupil is blown out, recent head injury no bleeding or loss of consciousness, dizzy and disoriented, could it be treated at home?

Hit my forehead not very hard, no bump or sign of injury no loss of consciousness but I feel tightness in that area is this okay? can I go to sleep with no worries?

Dizziness with sweating and on occasion loss of consciousness or ringing in ears?

Had three loss of consciousness events this past year. Two diagnosed syncope and one seizure by ER Dr. Neurologist confirmed normal EEG. ?

Several loss of consciousness episodes but normal workup and labs with cardiologist, Endocrinologist and neurologist. How can I prevent another event ?

Tachycardia, sharp heart pain, loss of consciousness and paraesthesia (pins and needles sensation)..?

Hit in the back of the head with a foam dodgeball 12 hours ago. No loss of consciousness. No severe headache. Brain damage likely?