Avoiding Common Diagnostic Errors in Primary Care

Common complaints of abdominal pain, fever, shortness of breath, or rash can signal more serious disease that should be referred to specialty care or might be related to benign conditions.

Combine the vague nature of many patients’ descriptions and the pressure of short visits, and clinicians have a recipe for all manner of diagnostic error.

An estimated 5% of US adults who seek outpatient care each year experience a diagnostic error. Most Americans will eventually have this experience, according to a 2015 report from the National Academy of Medicine.

The most frequently missed diagnoses in primary care involve conditions such as pneumonia, decompensated congestive heart failure, acute renal failure, cancer, urinary tract infection, and pyelonephritis.

“It’s not one or two or three types of diagnosis that are missed: We miss a lot of things, especially in primary care,” said Hardeep Singh, MD, MPH, a patient safety researcher at the Michael E. DeBakey VA Medical Center and the Baylor College of Medicine in Houston.

One of the most serious errors is to miss cancer, with failing to follow‐up on abnormal tests ranking consistently as one of the leading causes of malpractice claims. But most diagnostic errors do not lead to lawsuits, although they often result in missed and delayed opportunities for patients to get needed care.

In interviews with Medscape Medical News, experts who have studied the root causes of diagnostic error suggested primary care clinicians focus on several practices to avoid mistakes: Ask questions with humility and curiosity, use checklists, and brainstorm with patients the potential root cause of symptoms.

Humility and Curiosity 

Clinicians should remain aware of the potential for errors and reach out for assistance when needed, keeping an open mind that common symptoms may, in rare cases, signal serious illness, Singh said.

Singh recommends continual review with what he calls “byte-sized” learning through digital tools such as the Human Diagnosis app and podcasts and webinars offered by Clinical Problem Solvers.

Continuing education activities such as classes for Maintenance of Certification (MOC) can help keep physicians up to date and alert for cases where seemingly common symptoms may turn out to be something serious, said Richard M. Wardrop, III, MD, PhD, an internal medicine physician at the Cleveland Clinic in Cleveland, and chair of the internal medicine board at the American Board of Internal Medicine.

“I’ve been in practice for 20 years. I’m double board certified in peds and medicine, and I regularly teach students and residents and mentor other physicians, but the further I go in my career and in practice, the more humble I become,” Wardrop told Medscape Medical News.

He said he recently spent a few hours on MOC for pediatrics and found the review was helpful in his practice in medicine.

“If I find myself taking care of a patient in a newborn nursery anytime soon, I’m going to understand the new hyperbilirubinemia guidelines,” Wardrop said. “That takes time and energy, but when I was done with the questions for this quarter, I felt good about myself.”

Checking It Twice

Clinicians should incorporate checklists into daily practice. Reviewing these with patients can not only help rule out an illness but also serve as a nonconfrontational method to inquire about issues patients may find uncomfortable, said John Ely, MD, MSPH, professor emeritus of family medicine at the University of Iowa Carver College of Medicine in Iowa City.

Clinicians could benefit from the approach used in aviation, where checklists are a required and routine part of a pilot’s job, Ely said.

Although clinicians may assume patients expect them to work from memory and knowledge without this aide, many will see using a checklist as a sign of providing thorough care, he said.

Checklists can also open a pathway for discussions about potentially difficult or touchy issues in short visits. For example, a patient might feel defensive if a clinician asks about depression during a visit for abdominal pain. But incorporating a question in a checklist allows for a different framing of the question.

“A clinician could say ‘I didn’t say you were depressed because of your abdominal pain, I brought it up because it’s on the list,'” Ely said. The checklist is “a very easy way to bring up those things.”

Ely said he has cared for a few patients who sought help for abdominal pain that turned out to be linked to sexual abuse in their past. Ely used a checklist with these patients to review possible causes for their illness. He recalled one of these patients who had suffered sexual abuse and had depression, neither of which was readily apparent.

“There was nothing about her affect that appeared to be depressed, and she had seen multiple physicians unable to make a diagnosis,” Ely said. “She had worked up for multiple other diseases and this had never come up before.”

Cooperation 

“Coproduction” is how Kathryn McDonald, PhD, describes an ideal path to getting an accurate diagnosis. The intent is for clinicians to enlist patients in helping them in finding the root cause of symptoms.

“It’s bringing the patient into knowing that they are in a partnership to coproduce, knowing that there is a process going on,” said McDonald, who is co-director of the Armstrong Institute Center for Diagnostic Excellence at Johns Hopkins University in Baltimore.

In many cases, patients seek reassurance for ruling out a suspected condition, which the physician can sometimes provide. In others, clinicians may not be able to offer a concrete diagnosis.

“There are times when uncertainty is more pervasive and I will ask patients, ‘Let’s brainstorm this together,'” Wardrop said.

Kerry Dooley Young is a freelance journalist based in Washington, DC.