$51 Million Cook County Verdict After ER Fails to Test Man's Blood Sugar

A Cook County jury has awarded more than $51,000,000 to an Illinois man who suffered a permanent brain injury after physicians at OSF Heart of Mary Medical Center failed to order a blood sugar test during a 2022 emergency room visit. The verdict, reported April 8, 2026, stands as one of the largest medical malpractice awards in recent Cook County history and puts ER diabetes screening under sharp scrutiny.

Case at a Glance

• Verdict: $51,000,000+
• Case Type: Medical Malpractice
• Court: Cook County Court, Illinois
• Verdict Date: April 2026
• Plaintiff: John Reinke
• Defendant: OSF Heart of Mary Medical Center; unnamed physician
• Plaintiff Attorney: Jason Williams

What Happened at OSF Heart of Mary: The ER Visit That Led to a $51M Cook County Medical Malpractice Verdict

John Reinke, 47, arrived at OSF Heart of Mary Medical Center complaining of a severe headache unlike anything he had experienced before. According to trial testimony, Reinke presented with known risk factors for diabetes, including obesity and a history of gout.

Despite those indicators, physicians did not order a blood glucose test. Reinke was diagnosed with a tension headache, given medication, and discharged.

Days later, he was found unresponsive. He had suffered a cardiac arrest caused by a severe diabetic crisis.

The Injuries John Reinke Now Lives With

Reinke sustained a permanent brain injury as a result of the cardiac arrest. He now requires round-the-clock care and is unable to walk, talk, or eat on his own.

His legal team noted that the verdict, if it holds, could help fund access to a communication device he can operate using only his eyes.

The gap between what a simple blood sugar test costs and what the failure to order one ultimately cost John Reinke forms the core of this case.

Why Did the Jury Side with the Plaintiff?

Plaintiff attorneys argued that a routine glucose screening would have identified Reinke's condition and allowed physicians to intervene before the diabetic crisis occurred. Given his documented risk factors, the decision not to test fell outside the accepted standard of care, according to the trial record.

"I hope that screening for diabetes becomes a mantra in emergency rooms across the country so that outcomes like this can be avoided," said attorney Jason Williams.

OSF Healthcare System and the physician named in the lawsuit deny any negligence and have not publicly stated whether they intend to appeal.

What This Cook County Medical Malpractice Verdict Signals for Emergency Medicine

ER misdiagnosis cases are among the most contested in Illinois medical malpractice litigation. Plaintiffs must show not just that a mistake was made, but that the mistake deviated from what a reasonably competent physician would have done under the same circumstances.

Illinois does not cap compensatory damages in medical malpractice cases, which gives juries in this state the latitude to award figures that reflect the true lifetime cost of catastrophic injury. For a plaintiff like Reinke, whose care needs are permanent and extensive, that latitude matters enormously.

Juries in Cook County have returned significant medical malpractice verdicts when the facts are clear and the harm is severe. A verdict north of $51 million reflects both the gravity of Reinke's injuries and the jury's assessment of what adequate care should have looked like.

For plaintiff attorneys watching this case, the facts are instructive: documented risk factors on the record, a straightforward omission, and a catastrophic outcome. That combination tends to resonate in the jury room.

FAQ

Q: What does medical malpractice mean in an emergency room setting? A: Medical malpractice occurs when a healthcare provider fails to meet the accepted standard of care and that failure causes harm to the patient. In an ER context, this can include failing to order tests that a reasonably competent physician would have ordered given the patient's symptoms and risk factors. The plaintiff must prove both that the standard was breached and that the breach directly caused the injury.

Q: What types of damages can a jury award in an Illinois medical malpractice case? A: Illinois juries can award compensatory damages covering actual losses such as past and future medical expenses, lost income, and pain and suffering. The source reporting on this verdict does not break down the $51 million award into specific categories. Illinois does not cap compensatory damages in medical malpractice cases, following a 2010 Illinois Supreme Court ruling that struck down prior limits.

Verdicts like this one show what juries are prepared to award when the evidence is clear and the harm is permanent. If you or someone you love has been seriously injured by a medical error, the trial record of your attorney matters. Find a plaintiff lawyer on Major Verdict who has the results to back it up.