Oldies but Goodies

We as ED practitioners use about 55% of our medical knowledge, 98% of the time; and the other 45%, 2% of the time. Given this, the "other 45%" is prone to deterioration unless occasionally tuned up. In a new series of posts which will appear occasionally, Oldies but Goodies, I will re-post some of My Emergency Medicine Blog's previous entries in hopes of keeping the rigs well oiled. Happy learning, or rather, re-learning.