ocr: Resi dent and Staff Physi ci. an Patient Education Chart Formation of Urine Filtrate 0 - Water U Amino Acids, Glucose in Proximal Tubule 4 . Salt, Sodium in Loop of Henle o - Potassium & Hydrogen lons in Distal Tubules Reprinted with permission From Resident and: Staff Physician (c)1991-92, 1993 by Romaine PiersonF Publishers, Inc.