An older gentleman comes in with a productive cough and shortness of breath. By nursing protocol, he gets an EKG, shown above. You make a clinical diagnosis of community acquired pneumonia and write a prescription for moxifloxacin. There are no TB risk factors. Your attending, aghast, says that's not appropriate!Challenge: Why?
Image shown under Fair Use.
P.S. Sorry, I was late with this post as I accidentally put it on my regular blog.
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1 comment:
Abx
The fluoroquinolones, especially moxifloxacin, levofloxacin, and gemifloxacin can prolong the QT interval. Here, the QTc is already 513, and so there is a high risk of Torsades de pointes.
Sources: UpToDate; askdrwiki.com.
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