Can a concussion exist when a CT is normal?
Yes. Routine imaging may be normal because concussion can affect function without a visible structural finding. A clinician evaluates the injury.
Do symptoms always begin immediately?
No. CDC materials say signs and symptoms may not show up right away and may change during recovery.
What symptoms should be documented?
Physical, cognitive, sleep, and emotional changes, along with their timing and effect on ordinary activities.
What are concussion danger signs?
Emergency warning signs include worsening headache, repeated vomiting, seizure, slurred speech, unusual confusion, and increasing drowsiness. Call 911 for an emergency.
What is post-concussion syndrome?
It is a clinical label for ongoing symptoms after concussion or mild TBI. It should be used in the context of evaluation and a timeline.
Should imaging be repeated?
Not routinely in every case; follow the treating clinician’s recommendations. CDC adult mTBI guidance discusses when imaging and repeat imaging are appropriate.
How should a symptom log be written?
Use dates, times, the person’s own words, activity context, changes, and functional effects. Keep uncertain details marked as uncertain.
How do people return to sports?
CDC HEADS UP describes a gradual six-step progression with healthcare-provider approval and at least 24 hours per step.
Can school accommodations matter?
Yes. Written restrictions and changes in school activity can document function and recovery. California school-athletics rules should be read in their current statutory context.
Does this desk calculate settlement value?
No. There are no outcome estimates or predictions here. The desk explains evidence structure and public sources.
Is this medical or legal advice?
No. It is educational material. A qualified clinician evaluates health questions and a qualified lawyer evaluates legal questions.
What should an emergency do?
Call 911 or go to an emergency department for urgent danger signs after a head injury.