Small animal study: uremia, sham dialysis, animal health, and adhesion. a) Rats fed an adenine containing diet showed increased serum urea levels after two weeks. Sham hemodialysis had no effect on serum urea. b) Heart rate and blood pressure recorded during a 4 h dialysis session. Decrease in arterial pressure indicates a deeper state of anesthesia and is well within expected range. c) Hemocompatibility, ≈10% reduction of membrane area due to cellular adhesion, post 4 h HD.