Test results are among the most important parts of patient care, as they typically provide healthcare staff with a roadmap for figuring out what is wrong and what treatments are needed. Blood work, imaging scans, pathology reports, cultures, biopsies, heart tests, urine tests, and other studies often give doctors the information they need to diagnose serious conditions.
However, if those results are ignored, misunderstood, delayed, or never followed up on, a patient may lose valuable time. That can turn a minor or insignificant illness into a life-changing or even deadly condition.
Diagnostic errors can involve both individual judgment mistakes and larger system problems, such as poor communication, poor follow-up, and missed abnormal results. Ignoring or misreading test results is especially dangerous because the warning signs may already be in the medical record.
Symptoms and That a Diagnosis May Have Been Missed
Symptoms will depend on the condition that was missed. Generally speaking, patients and families should pay close attention if symptoms persist, worsen, or do not match up with the explanations provided by doctors and healthcare staff.
Common warning signs may include:
- Symptoms that do not improve after treatment.
- Symptoms that get worse after a doctor says “everything is normal.”
- New or unexplained pain.
- Chest pain, shortness of breath, or fainting.
- Severe headaches, weakness, confusion, or vision changes.
- Fever, chills, or signs of infection.
- Unexplained weight loss.
- Ongoing vomiting, diarrhea, or dehydration.
- Abnormal bleeding or bruising.
- A lump, mass, or swelling that grows or does not go away.
- Yellowing of the skin or eyes.
- Blood in urine, stool, or vomit.
- Abnormal fatigue or weakness.
- Trouble walking, speaking, swallowing, or using one side of the body.
- Worsening symptoms after an emergency room visit.
- A doctor later saying an earlier test showed something important
- A patient portal result was marked as abnormal with no explanation from the provider.
- A delayed phone call saying more testing is needed.
- A serious diagnosis is made only after repeated visits for the same complaint.
When a patient’s test results showed a clear warning sign, and no one acted on it, the care may mean medical malpractice took place.
Medical Conditions That May Be Missed When Test Results Are Ignored
Ignored or misread test results are dangerous because they can impact patients at any age with any health condition. Those failures can contribute to the delayed diagnosis of a variety of health conditions, such as cancer, heart disease, stroke, aneurysm, blood clots, infection, sepsis, meningitis, kidney failure, liver disease, diabetes complications, pregnancy complications, birth injuries, fractures, internal bleeding, autoimmune disease, and neurological disorders.
- In cases involving cancer, a missed biopsy, mammogram, colonoscopy finding, PSA result, Pap smear, or imaging scan may allow the disease to spread before treatment begins.
- For cardiac cases, ignored lab results, EKG findings, stress tests, or imaging may lead to a missed heart attack or other serious problem. Missed heart attacks can be noticed decades later.
- In cases of infection, abnormal blood counts, cultures, or imaging findings may indicate a condition requiring urgent antibiotics or hospitalization.
- For children, missed test results can be especially serious because young children may not be able to explain their symptoms clearly.
- In newborns, ignored bilirubin levels, infection markers, blood sugar results, oxygen levels, or screening results may lead to severe harm if treatment is delayed.
How Medical Malpractice Can Cause Test Result Errors
There are several ways medical malpractice can occur. But almost all of them occur when a doctor, hospital, lab, imaging center, nurse, or other medical provider fails to act as a reasonably careful provider would have under similar circumstances. As for test result cases, the issue is often not just whether the test was ordered, but whether the result was reviewed, understood, communicated, and acted on.
Possible examples of malpractice may include:
- Failing to review test results before discharging a patient.
- Failing to tell a patient about abnormal test results.
- Failing to follow up after a lab, scan, biopsy, or culture comes back abnormal.
- Misreading an imaging scan, pathology report, or lab value.
- Treating an abnormal result as normal.
- Failing to compare current test results with earlier results.
- Failing to order more testing after a suspicious result.
- Failing to refer the patient to a specialist.
- Failing to contact the patient when urgent results come back.
- Failing to document who is responsible for follow-up care.
- Failing to create a safe system for tracking abnormal test results.
- Failing to act on results that return after an emergency room discharge.
- Relying only on a patient portal instead of directly communicating serious results.
- Failing to explain what the test results mean.
- Failing to tell the patient what symptoms require urgent care.
- Failing to recognize that a “borderline” or changing result may still be dangerous.
Ignoring or Misreading Test Results FAQs
How can ignored test results lead to a delayed diagnosis?
Ignored test results can delay diagnosis because the information needed to identify the problem may already be available. For example, a scan may show a mass, a lab test may show infection, or a biopsy may show cancer. If staff fail to review the results, tell the patient, order more testing, or refer the patient to a specialist, the condition may continue to worsen. The patient may continue seeking care even after being told nothing serious is wrong. By the time the correct diagnosis is made, treatment may be harder, more painful, more expensive, less effective, or, in some cases, too late.
What types of test results are most often missed or misread?
Some of the most commonly missed or misread tests include blood tests, imaging scans, biopsies, pathology reports, infection cultures, heart tests, prenatal tests, newborn screening results, and emergency room testing. Radiology and lab results are especially important because they often contain objective signs of a serious medical problem. Even a slight delay in reporting results can make a major impact on the patient’s health.
Some results are missed because they come back after the patient leaves the hospital or emergency room. Others are placed in an electronic chart but not reviewed carefully. Any abnormal result should have a clear follow-up plan.
Is it malpractice if a doctor says my test was normal when it was actually abnormal?
Depending on the facts, a misdiagnosis can be medical malpractice. Some test results are complex, and not every mistake proves negligence. However, if a reasonably careful doctor should have recognized that the result was abnormal, explained it to the patient, ordered more testing, or made a referral, then the case may need legal and medical review.
In these cases, the records matter. An attorney may look at the actual report, the timing, the patient’s symptoms, what the provider documented, and whether the delay caused harm. The key issue is whether proper care would have led to an earlier diagnosis or better outcome.
Can a hospital be responsible for test results that come back after discharge?
Yes, a hospital or provider may be responsible if there was no safe system for reviewing and acting on results that came back after discharge. This often happens in emergency rooms, urgent care centers, hospitals, and outpatient clinics.
For example, a culture, imaging report, or lab result may return after the patient has already gone home. A careful healthcare system should identify who receives the result, who contacts the patient, and what follow-up is needed. If no one takes responsibility and the patient is harmed, the case may constitute medical negligence.
How do you prove that ignored test results caused harm?
A close, detailed review of the medical records and the gathering of expert medical opinions are the best ways to prove that medical negligence caused an injury. The records may show when the test was ordered, when the result came back, who received it, what the result showed, and what action was taken or not taken.
Medical experts may explain what should have happened and whether earlier treatment would likely have changed the outcome. It is not enough to show that a provider made a mistake. A malpractice claim must also show that the mistake caused real harm, such as delayed treatment, worsened illness, or preventable injury.
What compensation may be available after misreading or ignoring test results?
Compensation depends on the facts of the case and the severity of harm caused by the delay. A patient may be able to seek damages for medical bills, future medical care, lost income, reduced earning ability, pain and suffering, disability, emotional distress, and loss of enjoyment of life.
In cases involving children, damages may include long-term treatment, therapy, educational support, assistive care, and future medical needs. If the patient dies, surviving family members may have a wrongful death claim. An experienced medical malpractice firm like Weisser Law can realistically evaluate what damages may apply and how much your case is truly worth.
Why should patients contact Weisser Law if they suspect medical malpractice played a role?
It is not enough to show that a doctor was wrong. These types of cases usually require proof that the provider failed to meet the accepted standard of care and that the delay caused injury. Weisser Law has decades of courtroom experience, and our experts have just as much experience in hospital settings. We can review the timeline, gather medical records, work with qualified medical experts, and help determine whether the patient may have a claim. Acting quickly is important because medical malpractice cases have strict deadlines.