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This is a better way to measure anomalies. Today, when something seems off, doctors will try to prescribe medicines which does not get down to the root issue of the problem.

Example: High uric acid? Try some Allopurinol. Not: ‘Hey, let’s check out your kidneys because your bloodwork has similar characteristics of XX.’

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Why is this "way better"? The article appears to discuss a blood tests to triage stroke which is unrelated to both disease treatment or identifying a root cause of the stroke.

What are you saying this test is "better" then? A CT angiogram? Because it's not more accurate then a run-of-the-mill modern medicine gold standard CTA. The test may have a role in low-income countries where they don't have modern equipment and can't easily transfer patients to a place that does, however.

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