A group of U.S. researchers is developing a rapid blood test that will diagnose you while you’re in a doctor’s waiting room.
More than convenience, though, they say it can prevent unnecessary treatment with drugs you don’t need.
Coughs, sore throats and runny noses are among the most common reasons people see their family doctors. But that could mean anything from a cold or flu to laryngitis or pneumonia — a massive difference in the seriousness of your condition and the kind of treatment you’ll need.
It can take 10 hours for a definitive answer from a lab. Meanwhile, you’re left waiting or taking antibiotics you may not need.
That’s a big problem: Bad reactions to antibiotics are one of the most common reasons for emergency room visits, says Duke University’s Ephraim L. Tsalik, a lead author of the blood test study described in the January 20 issue of Science Translational Medicine.
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Even if they work the way they’re supposed to, they can disrupt the delicate balance of good bacteria in your body.
“Particularly for young patients, for infants … antibiotics can have lasting implications on health,” Tsalik said.
It can also exacerbate the proliferation of drug-resistant bacteria that threaten public health. Drug-resistant bacteria cause 2 million illnesses and 23,000 deaths each year in the U.S.
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“It’s led to a lot of alarm in the global community, concerns that we may end up in a pre-antibiotic era where people have infections that cannot be treated,” he said.
“In the hospital setting, we’re seeing that on a daily basis.”
How it would work
A patient arrives with possible symptoms like a runny nose and congestion, a cough or shortness of breath. In the waiting room, a nurse takes a few drops of the patient’s blood, puts it on a cartridge and loads it into a machine.
By the time the doctor’s ready to see you, they’ll already know what’s wrong with you, said the study’s co-author Christopher W. Woods, medicine professor and associate director of Duke’s genomics center.
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