Blood clots in severe Covid-19 patients leave clinicians with clues about the illness — but no proven treatments

Apr 16, 2020

Some people have developed widespread blood clots, their lungs peppered with tiny blockages that prevent oxygen from pumping into the bloodstream and body. Without a rigorous study, though, it’s impossible to know the potential risks or benefits of tPA, blood thinners, or other drugs or what makes a difference. STAT

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