How to Prove Medical Negligence in a Malpractice Lawsuit

By Brett Reynolds & Associates, P.C.
Stethoscope and Medical Negligence word in board

Proving medical negligence requires showing that a healthcare provider’s actions fell below the required standard of care and directly caused harm. Gathering the right evidence—such as medical records, strong testimony, and documentation of damages—is essential. 

Brett Reynolds & Associates, P.C. is a firm that helps clients pursue medical negligence claims in San Antonio, Texas. This firm guides clients through each step of a medical negligence case to hold negligent providers accountable.

Here are the key elements needed to prove medical negligence and how an experienced law firm can help build a strong case.

The Standard of Care in Texas

Healthcare providers in Texas must follow the standard of care that a reasonably prudent provider would use under similar circumstances. Determining this standard involves reviewing hospital protocols, medical guidelines, and licensing board regulations. 

A deviation, such as performing an incorrect surgery or misreading diagnostic tests, may constitute medical negligence.

Credible testimony is crucial when defining the standard of care. A qualified medical professional explains what a reasonably competent provider would have done in the same situation. Without this input, it’s nearly impossible to show that a provider’s actions were negligent.

Gathering Essential Medical Records

Obtaining comprehensive medical records is the first step in building a malpractice lawsuit. Records include doctor’s notes, test results, imaging studies, and hospital discharge summaries. These documents reveal treatment decisions, timing of interventions, and any discrepancies in care.

Clients should also secure consent to obtain records from any prior medical providers. Past medical history can influence whether an injury was preexisting or worsened by a provider’s mistake. Having a complete record helps attorneys identify gaps in care and supports medical negligence claims.

Common Types of Medical Negligence Claims

Medical negligence can take many forms, each requiring specific evidence and expert input. Identifying the type of claim early helps attorneys gather appropriate documentation and support. Common examples often involve failures in diagnosis, surgery, and medication. Examples of these claims include:

  • Misdiagnosis or delayed diagnosis: Failing to recognize or investigate symptoms promptly may allow a treatable condition to worsen.

  • Surgical errors: Mistakes such as operating on the wrong site or leaving instruments inside a patient can cause significant harm.

  • Medication errors: Prescribing the wrong drug, incorrect dosage, or overlooking drug interactions can lead to adverse reactions.

  • Birth injuries: Inadequate prenatal care or delivery mistakes, like delayed C-sections, may result in serious injury to mother or baby.

  • Anesthesia errors: Administering incorrect dosages, failing to monitor vitals, or ignoring a patient’s medical history can lead to devastating outcomes.

These categories often overlap and may involve more than one error in a single case. By recognizing each type of claim, plaintiffs and attorneys can focus on gathering evidence specific to their situation. Early identification of the claim type strengthens the overall case.

Proving Causation Between Negligence and Injury

Showing that medical negligence caused a patient’s injury involves more than proving a breach of the standard of care. Plaintiffs must demonstrate both cause in fact and proximate cause. Cause in fact answers whether the provider’s action was the actual source of harm, while proximate cause requires that the harm was a foreseeable result of that action.

Medical records and expert opinions must align to trace a direct line from negligence to injury. For example, if a misread test allowed cancer to spread, experts must show how an earlier diagnosis would have changed treatment outcomes. A detailed timeline of events—from initial symptoms to postoperative complications—helps illustrate this causal link.

Presuit Notice and Statute of Limitations

Before filing a medical negligence suit in Texas, plaintiffs must send a presuit notice to each healthcare provider involved. This notice outlines the basis of the claim and gives providers at least 60 days to investigate. Failing to send proper notice can result in dismissal of the claim. Meeting these requirements allows clients to pursue a lawsuit without procedural hurdles.

Texas law generally limits medical negligence claims to two years from the date of injury or from when the harm was discovered. Missing this deadline usually bars any recovery, even if negligence is clear. Attorneys must monitor these deadlines closely and file suit promptly. Clients should discuss timelines with their lawyer to avoid losing the right to sue.

Gathering Medical Opinions and Strengthening Causation

To prove medical negligence, plaintiffs need a qualified physician who can review records and testify about the applicable standard of care. A medical professional explains what a reasonably competent provider would have done under similar circumstances and identifies any deviations. Their testimony shows how those deviations caused injury, helping jurors connect the dots. 

Finding the right medical professional means assessing credentials, specialty, and credibility. The report must clearly explain how the provider’s actions fell below accepted practices and how those actions caused injury. Precise, well-supported opinions help counter arguments that a patient’s preexisting condition or unrelated issue was responsible. 

Negotiating Settlements and Preparing for Trial

After gathering evidence, attorneys draft a demand package detailing injuries, treatment costs, and liability. If the provider’s insurer refuses a fair settlement offer, the case must proceed to trial. Key tasks in trial preparation include:

  • Demand package preparation: Drafting a comprehensive document that outlines claims, damages, and supporting evidence to present a clear narrative to insurers.

  • Expert report finalization: Assuring medical professionals provide detailed opinions linking negligence to harm, complete with references to records and guidelines.

  • Witness preparation: Coaching surviving witnesses on courtroom testimony, reviewing potential questions, and conducting mock examinations to build confidence.

  • Evidence organization: Compiling medical records, imaging studies, billing statements, and correspondence into a logical sequence for jury review.

  • Exhibit creation: Developing demonstrative materials—like injury diagrams or timelines—that clarify intricate medical and procedural details during trial.

Once these steps are complete, the case is ready for jury selection and opening statements. Attorneys then focus on presenting witnesses, cross-examining defense professionals, and crafting closing arguments that highlight the provider’s deviation and the client’s damages.

Demonstrating Damages and Causation Details

Calculating damages means quantifying economic, non-economic, and sometimes punitive losses. Medical negligence plaintiffs may claim past and future medical expenses, lost wages, pain and suffering, and loss of enjoyment of life. Accurate documentation, such as billing statements and employment records, supports these claims.

Proving causation becomes more challenging when patients have preexisting conditions. Defendants often argue that an injury stemmed from a chronic illness rather than negligence. 

To counter this, plaintiffs rely on testimony comparing pre- and post-incident medical status. Showing that a condition was aggravated by a provider’s mistake helps apportion liability correctly.

Overcoming Defenses to Medical Negligence

Defendants in medical negligence actions often raise several defenses intended to weaken liability arguments. Understanding these tactics early helps plaintiffs anticipate challenges and prepare more robust claims. Common defenses include the following:

  • Comparative fault: Texas applies modified comparative fault, meaning recovery is reduced by the plaintiff’s percentage of fault and barred if fault exceeds fifty percent.

  • Intervening causes: Providers may claim that a patient’s unrelated illness or third-party action broke the causal chain.

  • Failure to follow treatment: Defendants sometimes argue that inadequate follow-up care or patient noncompliance worsened injuries.

  • Statute of limitations: Texas generally requires medical negligence claims to be filed within two years of the date of injury or discovery of harm.

  • Lack of support: Without a credible report, courts often dismiss medical negligence claims before trial.

Plaintiffs can overcome these defenses by gathering timely evidence, meeting presuit requirements, and securing strong testimony. Addressing comparative fault requires documentation that highlights the provider’s breach relative to the patient’s conduct. 

Documenting Treatment Protocols and Breaches

To prove medical negligence, plaintiffs must show that a provider failed to follow established treatment protocols. Treatment protocols include hospital policies, clinical guidelines, and professional board recommendations. Attorneys obtain copies of these guidelines as they existed at the time of care. Comparing protocols with actual treatment reveals any deviations.

Gathering facility policies often involves requesting internal documents, patient care manuals, and standard operating procedures. Attorneys review progress notes, nursing logs, and medication administration records. By pinpointing inconsistencies, such as missing vital sign checks or skipped diagnostic tests, they illustrate how care fell below accepted standards. This documentation strengthens the argument that deviations directly caused harm.

Contact an Experienced Firm Today

If you believe you’ve suffered harm due to medical negligence, Brett Reynolds & Associates, P.C. is there for you. This firm serves clients in San Antonio, Texas, and surrounding areas, including Laredo, the Rio Grande Valley, Austin, and the Texas Hill Country. Contact the firm today.