Laboratory Errors | Hospital Negligence

Laboratory Error Lawsuits: Protecting Patients from Medical Testing Mistakes

Accurate lab testing is essential to modern medicine. Physicians rely on lab results to diagnose illnesses, guide treatment, and make life-changing decisions for patients. When laboratories make mistakes—whether through mislabeling, contamination, faulty equipment, or human error—the consequences can be devastating. Patients may receive the wrong diagnosis, delayed treatment, or unnecessary procedures that put their health at risk.

Common Types of Laboratory Errors

Laboratory errors can take many forms, including:

• Specimen mislabeling: leading to mixed-up test results between patients.
• Contamination: introducing foreign substances that distort results.
• Improper handling or storage: affecting blood, tissue, or urine sample integrity.
• Equipment malfunction or calibration issues.
• Clerical mistakes: transcription errors or data entry problems.
• Misinterpretation of test findings.

There are thousands of medical laboratories around the country, many of them in-house at hospitals and medical centers, and patients rely on their expertise and accuracy in times of need. Laboratory errors are downright unacceptable. Medical labs serve a crucial purpose, and receiving proper diagnostic tests can be the difference between an accurate, timely diagnosis and a delayed diagnosis or misdiagnosis.

Regardless of whether it is a hospital lab or a third-party outsourced lab like Quest or LabCorp, medical professionals and hospitals have a duty to provide correct information to patients. Lab technicians and physicians work together to diagnose diseases and illnesses, prescribe medications, and plan treatment for individuals.

When laboratory malpractice and diagnostic errors lead to a misdiagnosis or delayed diagnosis, the medical center and lab can be held accountable for the damages they have caused.

Joe Lyon is a Medical Malpractice Attorney and Hospital Error Lawyer reviewing radiology and laboratory malpractice for plaintiffs nationwide.

Laboratory Errors & Diagnostic Errors

A timely and proper diagnosis is critical so patients can quickly begin treatment and get back to full health. But an accurate diagnosis can often only be confirmed by the results of X-rays, biopsies, blood samples and other diagnostic testing. Laboratory errors can include mislabeling samples, losing test results, and a failure to accurately interpret and communicate test results to doctors and patients.

Medical diagnosis for many serious illnesses and conditions like cancer involve a wide range of testing. Hospitals have the ability to treat patients with impressive modern medical advances, but when labs and medical staff make mistakes, patients may suffer the consequences.

Diagnostic errors and laboratory malpractice can easily result in wrong, delayed or missed diagnosis. Diagnostic testing mistakes and failure to diagnose patients are a leading cause of medical malpractice lawsuits, and perhaps only second to surgical errors in the number of patients harmed by negligence.

Hospital Laboratory Negligence

Radiologists are held in high regard by any medical team. The specialists are tasked with interpreting radiographs like X-rays and MRIs to determine a patient’s condition. But when a doctor misses something obviously seen on film, a patient may not be diagnosed correctly.

Missed cancer diagnosis is relatively common, and often the result of radiology malpractice. Doctors do make mistakes, and though they may not intentionally make a professional error, they may be held responsible in medical malpractice litigation.

If you or a loved one has been a victim of laboratory malpractice, it is important to speak to an experienced medical malpractice attorney who understands this complex area of the law. The Lyon Firm works with medical experts who can look into each unique course of events and determine the root cause of injury or death.

Delayed Diagnosis & Misdiagnosis Lawsuits

A misdiagnosis or delayed diagnosis case involves a patient who is told they do not have a disease when they in fact do. Failure to diagnose lawsuits can name doctors, hospitals and lab technicians as defendants. A lab error or misreading a test result can result in serious injury and death. Almost every health condition is better treated early, and early diagnosis can save lives.

Most laboratory errors are due to pre-analytical factors, poor communication, and poorly designed processes. Examples of laboratory malpractice include:

• Conducting the wrong tests
• Misreading or misinterpreting lab results
• Mixing up patient samples
• Mislabeling samples
• Losing medical records
• Delayed testing
• Recording wrong results
• Contaminating samples
• Failure to communicate results
• Failure to follow up with patients

Laboratory Error Lawsuits

Lab mistakes can include false positive tests or false negatives. Both errors can cause harm to a patient, as a treatment may be unnecessary or a delayed treatment may lead to a wrongful death. Medical malpractice cases arise when a duty of care is not met by a medical professional, and an injury or death results.

Medical labs have strict protocols, though mistakes are still made on a regular basis. Approximately 250,000 people die each year as a result of medical errors, many of which involve a failure to diagnose a patient.