Reviewed by Mazie Slater’s specialized emergency room malpractice attorney [David A. Mazie – Managing Partner of Mazie Slater Katz & Freeman]

New Jersey emergency rooms are an almost perfect storm for medical malpractice. They are chronically understaffed, requiring surgeons, doctors, nurses, and other medical professionals to work long hours and even double shifts on occasion. On top of that, an ER can be a hectic, chaotic scene where patients arrive unpredictably with various medical emergencies that require urgent vital care.

Research from the Agency for Healthcare Research and Quality found that approximately 5.7% of emergency room patients receive an incorrect diagnosis, and roughly 2 percent suffer an adverse event as a direct result of a diagnostic error. These are not statistical abstractions; they represent real patients whose outcomes could have been different had the standard of care been met.

If you or a family member suffered a serious injury or illness due to emergency room negligence in New Jersey, the experienced ER malpractice attorneys at Mazie Slater Katz & Freeman are here to help. We have spent decades holding hospitals, emergency physicians, and medical teams accountable for preventable harm, and we are ready to fight for the compensation you deserve.

Emergency room malpractice cases are among the most complex and high-stakes matters in New Jersey civil litigation. They require a deep understanding of emergency medicine protocols, hospital staffing standards, diagnostic obligations, and triage procedures, as well as the litigation experience to take on large hospital systems and their insurers. Mazie Slater Katz & Freeman brings all of that, and a documented track record of significant results, to every client we represent.

Our New Jersey emergency room malpractice attorneys have secured tens of millions of dollars for patients harmed by ER negligence, including, for example:

Results may vary depending on your particular facts and legal circumstances.

Emergency room malpractice falls under the broader umbrella of medical malpractice, which is itself a specialty area of personal injury law. Mazie Slater Katz & Freeman has been recognized among the leading personal injury and medical malpractice firms in both New Jersey and the nation. Our attorneys approach every emergency room case with the same depth of commitment that has earned us recognition from the industry’s most respected legal publications. Some of our awards and recognitions include:

Emergency room malpractice occurs when an ER physician, nurse, technician, anesthesiologist, or other hospital staff member fails to provide care that meets the accepted standard for emergency medicine, and that failure directly causes harm to the patient. New Jersey emergency rooms are required to comply with established hospital licensing standards governing emergency department and trauma services, and healthcare providers working within those departments are held to the professional standards recognized in the specialty of emergency medicine.

New Jersey emergency rooms are, by their nature, high-pressure environments. Patients arrive unpredictably with a wide range of conditions — from minor injuries to life-threatening emergencies — and ER staff must make fast, high-stakes decisions often with incomplete information. While those conditions are understood, they do not excuse departures from the standard of care. Common causes of emergency room malpractice include:

Misdiagnosis or Failure to Diagnose

Failing to correctly identify a patient’s condition is the most common form of ER malpractice. The consequences are especially grave when the missed condition is time-sensitive — such as stroke, myocardial infarction, aortic dissection, pulmonary embolism, or meningitis. Each of these conditions has a narrow treatment window; a missed or delayed diagnosis can mean the difference between full recovery and permanent disability or death.

Failure to Order Appropriate Diagnostic Tests

ER physicians are obligated to order the tests necessary to rule out serious conditions when a patient’s presentation warrants it. Failure to order a CT scan, blood work, cardiac enzymes, or other indicated tests — even when a patient’s vitals appear stable — can allow a life-threatening condition to go undetected.

Failure to Properly Evaluate the Patient

Rushing through an evaluation or failing to take a thorough medical history can lead to an incorrect or incomplete diagnosis. ER physicians must assess the totality of a patient’s presentation, including chief complaint, history, physical findings, and risk factors.

Failure to Admit or Adequately Monitor the Patient

Some conditions require observation over several hours before a definitive diagnosis can be made. Prematurely discharging a patient who should be admitted for monitoring, or failing to adequately monitor a patient who has been admitted, can allow serious conditions to progress unnoticed.

Delayed Treatment

In emergency medicine, time is frequently the most critical variable. A concept known as “the golden hour” reflects the widely accepted principle that treatment begun in the first hour after a traumatic event or acute medical crisis is far more likely to be effective. Unreasonable delays in treatment — whether due to understaffing, poor triage decisions, or failure to recognize the severity of a patient’s condition — can constitute malpractice.

Medication Errors

Administering the wrong medication, the wrong dosage, or a medication that interacts dangerously with another drug the patient is taking can cause serious harm. In the fast-paced ER environment, medication errors occur with troubling frequency and can be fatal.

Laboratory and Radiology Errors

ER physicians often rely on lab test results and imaging studies to guide diagnosis and treatment. Misreading X-rays or CT scans, laboratory contamination or processing errors, or failure to follow up on abnormal results can lead directly to misdiagnosis and patient harm.

Anesthesia Errors

When a patient requires emergency surgery, an anesthesiologist must administer and monitor sedation appropriately. Given the powerful dosages involved, even a minor error — in administration, monitoring, or the failure to account for the patient’s history — can have severe consequences.

Surgical Errors During Emergency Procedures

The risks inherent in any surgical procedure are compounded in emergency settings where there may be less time for preparation. Surgical errors in the ER, including wrong-site surgery, retained instruments, and improper technique, represent serious departures from the standard of care.

If you believe that one or more of these failures contributed to your injury or the loss of a loved one, contact the experienced New Jersey emergency room malpractice attorneys at Mazie Slater Katz & Freeman. We will review the specific facts of your case and advise you on your legal options.

The consequences of emergency room errors range from manageable complications to devastating, life-altering injuries. Because emergency rooms treat patients at their most vulnerable, mistakes in that setting often amplify pre-existing conditions rather than treating them. Common injuries resulting from ER malpractice include:

Liability in an emergency room malpractice case depends on the specific circumstances of the patient’s treatment. Multiple parties may share responsibility, and identifying every potentially liable defendant is an essential part of maximizing your recovery. Potentially liable parties include:

The Emergency Room Physician

The treating ER physician bears primary responsibility for the patient’s evaluation, diagnosis, and initial treatment plan. Liability may arise from failures to properly assess the patient, to order appropriate tests, to recognize a life-threatening condition, or to initiate timely treatment.

ER Staff

ER nurses, technicians, and other staff members have distinct and independent obligations to the patient. Liability may arise from medication errors, failure to monitor a patient’s condition, failure to communicate critical information to the treating physician, or failure to escalate concerns about a patient’s deteriorating status.

Radiologists and Laboratory Personnel

Radiologists who misread imaging studies, and laboratory technicians who improperly process or report on specimens, bear independent professional responsibility for their errors. In many ER malpractice cases, the chain of negligence begins with a misread X-ray or an incorrect lab result.

Anesthesiologists and Surgeons

When a patient requires emergency surgery, the anesthesiologist and surgical team assume responsibility for their respective roles. Errors in anesthesia administration, surgical technique, or post-operative monitoring can give rise to independent malpractice claims against these providers.

EMS and Emergency Medical Services

In some cases, malpractice may begin before the patient even arrives at the hospital. EMS personnel who fail to properly stabilize a patient, administer incorrect treatment in the field, or communicate inadequate information to the receiving ER team may bear partial responsibility for the patient’s injuries.

The Hospital or Healthcare Facility

Hospitals can be held liable for the negligence of their employed staff and, in some circumstances, for independent contractors practicing within their facilities. Hospitals may also face direct liability for institutional failures including inadequate staffing levels, deficient training programs, broken or malfunctioning equipment, and systemic communication failures that contribute to patient harm.

Medical Device and Equipment Manufacturers

If a defective medical product — such as malfunctioning monitoring equipment, a defective defibrillator, or a contaminated surgical instrument — contributed to the patient’s harm, the manufacturer may be liable under product liability theories.

Our emergency room malpractice attorneys conduct thorough investigations at the outset of every case, reviewing all medical records, consulting with emergency medicine and specialty experts, and identifying every party whose negligence may have contributed to our client’s injury.

Victims of emergency room malpractice in New Jersey may be entitled to recover substantial compensation reflecting both the measurable financial costs and the profound personal losses caused by preventable ER negligence. New Jersey does not impose a cap on compensatory damages in medical malpractice cases, meaning our attorneys can pursue the full extent of our clients’ losses without an arbitrary legal ceiling.

Economic damages include all quantifiable financial losses caused by the emergency room malpractice, both past and future. These may include:

Non-economic damages compensate for the deeply personal losses that cannot be calculated in dollars but are equally real and significant. These include:

In cases where emergency room malpractice results in the death of the patient, the family may also be entitled to bring a wrongful death claim, seeking damages for funeral and burial expenses, loss of financial support, and loss of companionship.

New Jersey also follows a modified comparative negligence rule: if a patient shares some fault for their injuries — for example, by leaving the ER against medical advice — their compensation may be reduced proportionally, but they may still recover as long as their own fault does not exceed that of the defendant.

The emergency room malpractice attorneys at Mazie Slater Katz & Freeman have spent decades securing justice for New Jersey patients and families harmed by negligent emergency care. We understand that no verdict or settlement can undo the harm that has been done — but we fight relentlessly to ensure that those responsible are held accountable and that our clients have the financial resources to address the full impact of their injuries.

If you or a loved one suffered serious harm due to emergency room negligence at a New Jersey hospital — whether from a missed diagnosis, a medication error, a failure to monitor, or any other departure from the standard of care — do not wait to seek the legal guidance you need. Contact our firm today for a free, confidential consultation. Our attorneys will review your case and advise you on your legal options. There are no upfront fees; we work on a contingency basis and only collect a fee if we recover compensation for you.