Dialysis and Safe Preparation for a Colonoscopy

Over the past month my hemoglobin (Hb) level dropped unexpectedly from a powerful and red-blooded 13 g/L to a feeble and anaemic 8.5 g/L over a three week period.  The big question was: why?

The first thing that occurs to most medicos is that the drop has been caused by blood loss, if not from some obvious wound, then maybe for somewhere more subtle, like the bowel or intestines.  Blood loss via the bowel may not be in liquid form, but rather (not to put too fine a point on it) in the form of black poo.  “No black poo here” I said.  Still, (more…)