Monday, March 7, 2011


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.

1 comment:

Craig Chen said...


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;