Pulmonary Embolism Misdiagnosis Lawsuits

Why a Pulmonary Embolism Gets Missed

A pulmonary embolism hides behind ordinary complaints. The symptoms that should raise alarm (sudden shortness of breath, sharp chest pain that gets worse with a deep breath, a fast heart rate, sometimes a cough or lightheadedness) overlap with conditions far more common in a busy emergency department.^[1] That overlap is where the diagnostic anchor goes wrong.

• The presentation reads as anxiety. A young patient who is breathless, tachycardic, and frightened looks, on a quick glance, like a panic attack. Once anxiety becomes the working diagnosis, the racing heart and the air hunger get treated as proof of the panic rather than warning signs of a clot.
• Pleuritic pain reads as a pulled muscle. Chest pain that sharpens with breathing or movement gets labeled musculoskeletal, especially in a patient who cannot point to an injury. Costochondritis and a strained muscle are easy, low-stakes diagnoses, which is exactly why they get reached for.
• The vital signs get explained away. A mildly low oxygen saturation, a fast pulse, or a low-grade fever can all be attributed to the wrong cause. Each abnormal number that gets a benign explanation is one more reason the workup never starts.
• The risk factors are never asked about. A PE often announces itself through the history, not the exam. A recent surgery, a long-haul flight, a cancer diagnosis, or a prior clot reframes the whole picture, but only if someone takes that history.
• Diagnostic anchoring shuts the door early. Once the chart says anxiety or strain, later data gets filtered through that label instead of reopening the question, even as the patient deteriorates.

This anchoring problem is not unique to PE. It drives the most-litigated misses across the emergency setting, which our overview of emergency-room misdiagnosis and discharge breaches walks through in detail.

The High-Risk Patient a PE Should Be Suspected In

Pulmonary embolism is a disease of risk factors. A patient does not develop a clot out of nowhere; something usually predisposed them to it. When those predisposing factors are present and a patient shows up short of breath, the suspicion for PE should rise sharply.

• Recent surgery or hospitalization. Major orthopedic, abdominal, or pelvic surgery is a leading driver. So is any extended hospital stay that kept the patient in bed. A post-operative patient with new shortness of breath is a textbook PE candidate.
• Recent immobilization. A long flight, a long drive, a cast on the leg, or days of bed rest at home all slow blood flow in the legs and let clots form. The clot that started in a leg vein is the clot that travels to the lung.
• Cancer and active treatment. Many cancers raise clotting risk, and chemotherapy compounds it. A cancer patient who becomes breathless deserves a PE on the differential, not a reflexive pulmonary infection diagnosis.
• Pregnancy and the postpartum period. Pregnancy raises clotting risk through the third trimester and for weeks after delivery. Breathlessness in a pregnant or recently delivered patient gets dismissed as normal more often than it should.
• Hormone therapy and a prior clot. Estrogen-containing birth control or hormone replacement raises risk, and a personal or family history of deep vein thrombosis or PE raises it further. A patient who has clotted once is more likely to clot again.

None of these factors guarantees a clot. Together they form the picture a careful clinician is trained to recognize, and the failure to take that history is often where a missed-PE case begins.

When "It's Just Anxiety" Becomes Negligence

Telling a breathless patient that the problem is anxiety is not always wrong. Panic attacks are real, common, and can produce a pounding heart and air hunger. The breach is not the consideration of anxiety. The breach is settling on anxiety and discharging the patient without ruling out the thing that kills.

The standard of care does not ask a clinician to be right on the first guess. It asks for a reasonable workup before a dangerous diagnosis is excluded. When a patient with PE risk factors presents with sudden breathlessness and a racing heart, an anxiety diagnosis that is reached by assumption rather than by exclusion is the pattern that turns a tragic outcome into a viable claim.

Two failures recur in these files. First, the risk factors were on the chart or available for the asking and were never weighed. Second, no clinical decision tool was applied, so there is no documented reason the workup was safe to skip. A patient sent home as anxious, who returns hours later in cardiac arrest, exposes both gaps at once.

Whether a given anxiety call breached the standard of care turns on the records and on what a reasonable physician would have done with the same information. The general doctrine that governs that question, the four elements a misdiagnosis plaintiff must prove, is laid out in our guide to failure-to-diagnose malpractice claims.

The Workup the Standard of Care Calls For

Pulmonary embolism has one of the most clearly defined diagnostic pathways in emergency medicine, which is part of why the misses are so hard to defend. The pathway is built to be fast, because PE is treatable when caught and lethal when it is not.^[2]

• Clinical risk scoring. Validated tools such as the Wells score and the PERC rule structure the decision about how likely a PE is and how aggressively to test. A documented score is the evidence that the risk was actually assessed rather than guessed.
• D-dimer when the score allows it. In a patient who is not high-risk, a D-dimer blood test can help rule out a clot. A negative D-dimer in a low-probability patient may safely close the door. A positive result, or a high-probability patient, pushes the workup forward to imaging.
• CT pulmonary angiography. The CT scan of the chest with contrast is the test that confirms or excludes the clot directly. For patients who cannot receive contrast, a ventilation-perfusion scan is the alternative. Ordering the right imaging at the right time is the heart of the standard of care.
• Treatment without delay. Once a PE is confirmed or strongly suspected, anticoagulation and, in severe cases, clot-dissolving therapy or a procedure follow. The window between recognition and treatment is where outcomes are won or lost.

When a chart shows breathlessness and clear risk factors but no score, no D-dimer, and no imaging, the records tell the story on their own. The pathway exists, it was available, and it was not followed.

How a Missed-PE Case Is Proven

Here is what we tell every family that comes to us with a missed diagnosis. The fact that the patient had a pulmonary embolism is not, by itself, the case. The case lives in two questions: do the records show the clot should have been caught when the patient first sought care, and would catching it then have changed how things ended.

Answering the first question means rebuilding the visit from the medical record. A plaintiff's emergency medicine expert reviews the triage note, the documented symptoms, the vital signs, the history that was and was not taken, and the discharge instructions. The expert identifies where the recognized pathway was bypassed and explains why a reasonable physician would have tested.

Answering the second question is the causation fight. The defense will argue the clot was massive and the outcome was fixed no matter what, that the patient had other fatal conditions, or that earlier treatment would not have changed the result. The plaintiff answers with the clot burden on imaging, the time between presentation and collapse, and expert testimony that anticoagulation begun at the first visit would more likely than not have prevented the death or the lasting injury.

The strongest cases pair a clear pathway breach with a clear causal link. A patient turned away as anxious, who returns in arrest, often supplies both.

What These Cases Are Worth

There is no fixed figure for a missed pulmonary embolism claim, and any number quoted before the records are reviewed is a guess. Value is shaped by the harm the delay caused, by who the patient was, and by the rules of the state where the claim is filed.

• The nature of the injury. A fatal PE, a survivor left with chronic heart and lung damage, and a patient who recovered after a frightening delay sit far apart on the scale of harm.
• Lost earnings and earning capacity. For a working-age patient who dies or is left disabled, lost income and future earning capacity are often the largest category of economic loss.
• Medical expenses. The cost of the more aggressive treatment the delay made necessary, plus ongoing care for any permanent injury.
• Pain, suffering, and loss. Non-economic damages for what the patient endured and what the family lost, subject in many states to a cap on non-economic damages.
• The number of liable parties and available coverage. Liability can reach the physician, the hospital, and others, and the available insurance shapes the recovery.

How these factors combine, and how they have played out in past medical malpractice cases, is covered in our breakdown of what a malpractice case is worth. When the missed clot was fatal, recovery runs through the state's wrongful death procedure, which our overview of a medical malpractice wrongful death claim explains.

How Long Do You Have to File

Medical malpractice claims are governed by a statute of limitations that varies by state, often somewhere in the range of one to three years. The deadline is a hard cutoff. Miss it and the right to bring the claim is usually gone, no matter how strong the facts.

Missed-PE cases carry the same timing wrinkles as other diagnostic-error claims. A discovery rule may delay the clock until the harm reasonably should have been discovered, which can matter when the connection between the visit and the injury surfaces later. A separate statute of repose can impose an outer limit regardless of discovery. Claims involving a child, or a death, often follow different deadlines, and claims against a public hospital can require formal notice within months.

None of that is worth trying to sort out alone while a family is still grieving. The safe move is to get the specific deadline for your state and your facts early, while the records are intact and the evidence is fresh.