Hypotension/hypovolemia as a low-pass filter: I got cut, I went into shock, and then everything started sounding funny. I'd guess it was a 40 dB (±10) rolloff, which began near 200 Hz (±50) and left me with nothing above 1kHz. How in the world? Story, discussion of numeric estimates, off-the-cuff physiological speculations, etc... [more inside]
posted by eritain on May 12, 2007 - 24 answers

Does anybody have tips on how to elevate blood pressure? [more inside]
posted by stray on Apr 20, 2005 - 19 answers