Legal Guide

How Doctors Diagnose Traumatic Brain Injuries

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How Doctors Diagnose Traumatic Brain Injuries

Traumatic brain injuries (TBIs) can be among the most devastating outcomes of a car crash, fall, or workplace accident. Yet many victims walk away from the scene unaware of how serious their injury truly is.

Unlike visible wounds or fractures, brain injuries can be invisible to the naked eye—and sometimes even to imaging scans. That's why an accurate diagnosis depends on specialized testing, observation, and medical expertise.

Understanding how doctors diagnose traumatic brain injuries helps victims and families appreciate the complexity of these cases—and why insurers often underestimate them.

As Alberta personal-injury lawyers who once defended insurance companies, we know how medical evidence determines claim value. This article explains the medical process of diagnosing TBIs, the types of tests doctors use, and why early documentation is crucial for both recovery and compensation.

This guide covers:

What counts as a traumatic brain injury
How doctors diagnose TBIs through clinical evaluation
Types of diagnostic tests and imaging used
Common insurance challenges with brain injury claims
Steps to take after a suspected brain injury
How lawyers use medical evidence to build cases
Alberta-specific rules and deadlines
Why accurate diagnosis matters for both health and legal recovery

What Counts as a Traumatic Brain Injury?

A traumatic brain injury occurs when external force damages brain tissue, causing temporary or permanent impairment of physical, cognitive, or emotional function. TBIs can result from direct impact, sudden acceleration or deceleration, or penetrating head trauma.

Common Types of Traumatic Brain Injuries:

Concussion (Mild TBI)Caused by rapid brain movement inside the skull; may cause dizziness, confusion, and headaches.
Moderate TBIInvolves longer unconsciousness or memory gaps, often with measurable deficits in concentration or speech.
Severe TBICauses extended coma, paralysis, or profound cognitive decline.
Diffuse Axonal InjuryShearing of nerve fibers from violent rotation or impact—common in high-speed crashes.
Open or Penetrating InjuryFracture or object penetration causing localized brain damage.

Common Insurance Challenges in Alberta

Insurers often dispute brain-injury claims precisely because diagnosis can be complex. They may point to 'normal' scans or inconsistent symptoms to minimize liability.

1

Claiming Exaggerated Symptoms

Claiming that concussion symptoms are exaggerated or unrelated.

2

Relying on Incomplete Records

Relying on incomplete emergency-room notes to argue no injury was reported.

3

Misinterpreting Medical Tests

Misinterpreting medical tests to suggest 'full recovery.'

4

Ignoring Neuropsychological Data

Ignoring neuropsychological data showing cognitive impairment.

5

Delaying Diagnostic Testing

Delaying or denying coverage for diagnostic testing.

We know these tactics because we used to design them. Today, we use that insider knowledge to anticipate and counter every argument insurers make against our clients.

How Doctors Diagnose Traumatic Brain Injuries

Diagnosing a TBI involves more than a single test—it's a combination of medical history, physical examination, imaging, and neurocognitive assessment.

Initial Clinical Evaluation

Doctors begin with a detailed history of the incident and early symptoms: Did the patient lose consciousness? Are there memory gaps before or after the event? Is there dizziness, nausea, or confusion? The physician will perform a neurological exam checking **pupil response**, **reflexes**, **balance**, and **speech**. These early findings guide the next steps.

Imaging Studies (CT, MRI, DTI)

CT scans detect acute bleeding or fractures. MRIs show more detailed tissue damage. Diffusion Tensor Imaging (DTI) can reveal microscopic white-matter injury often invisible on standard scans—crucial for diagnosing concussions and mild TBIs.

Neuropsychological Testing

Comprehensive evaluation assessing memory, concentration, processing speed, language, executive function, and emotional regulation. These tests provide objective proof of cognitive impairment that may not be apparent in daily interactions.

Glasgow Coma Scale (GCS)

Standardized scoring system used immediately after trauma to assess severity. Measures eye response, verbal response, and motor response. Scores range from 3 (severe impairment) to 15 (mild injury).

Vestibular and Oculomotor Testing

Specialized assessments measure balance, coordination, and eye-movement control. These are often affected in concussion patients and can explain dizziness or motion sensitivity.

Functional MRI and Quantitative EEG

In complex cases, doctors may use **functional imaging** or **electroencephalography (EEG)** to evaluate how the brain communicates. These advanced tests can reveal functional deficits missed by conventional scans.

Ongoing Observation

Because some brain injuries evolve over time, doctors monitor recovery through repeated visits and re-testing. Documented progression—or lack of improvement—is powerful evidence for future compensation.

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Steps to Take Immediately After a Suspected Brain Injury

If you've suffered a head impact or sudden jolt in a collision, don't wait for symptoms to worsen—early medical evaluation is essential.

Seek Emergency Care Immediately

Loss of consciousness, confusion, or vomiting requires urgent assessment.

Document Every Symptom

Headache, fatigue, blurred vision, or irritability may appear hours or days later.

Follow Up with Your Doctor

Request referrals to neurologists, psychologists, or rehabilitation specialists.

Avoid Self-Diagnosing

Even mild head injuries can have lasting effects.

Consult an Alberta Brain-Injury Lawyer Early

They can ensure your medical documentation supports future claims.

How a Lawyer Uses Medical Evidence to Build Your Case

Proving a brain injury in Alberta requires translating complex medical data into a clear, persuasive legal claim.

Coordinating Specialists

We ensure neurologists, neuropsychologists, and occupational therapists are involved early.

Gathering Complete Records

Hospital notes, imaging, and cognitive-testing results form the backbone of your case.

Obtaining Expert Opinions

We work with independent experts to confirm causation and quantify impairment.

Linking Symptoms to Lost Function

We connect medical evidence to real-life consequences—missed work, memory lapses, and reduced independence.

Preparing for Trial

Our experience defending insurers means we know how to dismantle their medical arguments before they use them.

Case Example

A Red Deer client suffered a 'mild' TBI after a rear-end collision. The insurer relied on a normal CT scan to deny coverage. After securing a neuropsychological assessment showing severe memory deficits, we obtained a **$600,000 settlement**, including future care and income loss.

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Frequently Asked Questions

Conclusion

Diagnosing a traumatic brain injury requires specialized medical expertise and comprehensive testing. While insurers may dispute these claims, Alberta law recognizes the serious nature of brain injuries and excludes them from the minor-injury cap.

TBIs can be invisible to standard imaging but still cause significant impairment.

Early medical evaluation and documentation are crucial for both recovery and legal claims.

Neuropsychological testing provides objective proof of cognitive deficits.

Alberta law protects brain injury victims with no cap on compensation.

Legal representation ensures medical evidence is properly presented and insurers are held accountable.

Worried about an undiagnosed brain injury?

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