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Too Much Data: Can It Overwhelm Doctors And Harm Patients?

One of the supposed strengths of electronic medical records is better tracking of test data. In theory, when using more sophisticated digital systems, doctors can better follow the mountains of test results that they encounter daily.

But a recent study, as written in the WSJ Health Blog, says otherwise. Apparently, a study performed in 2007 found:

VA doctors failed to acknowledge receipt of 368 electronically transmitted alerts about abnormal imaging tests, or one third of the total, during the study period. In 4% of the cases, imaging-test results hadn’t been followed up on four weeks after the test was done. Another study, published in March in the American Journal of Medicine, showed only 10.2% of abnormal lab test results were unacknowledged, but timely follow-up was lacking in 6.8% of cases.

Consider that the VA has what is considered the pinnacle of electronic systems — their unified, VistA program that permeates all their hospitals and clinics. Apparently the problem is one of alert overload:

Hardeep Singh, chief of the health policy and quality program at the Houston VA’s health and policy research center, led both studies. He tells the Health Blog that doctors now receive so many electronic alerts and reminders — as many as 50 each day — that the important ones can get lost in the shuffle.

This is not unlike the alarm fatigue issue that I recently wrote about. Too much data — whether it is written or on the screen — can overwhelm physicians and potentially place patients at harm. Curating test results by prioritizing abnormals will really be the true power of electronic test reporting.

*This blog post was originally published at*

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