This single video explains you everything that you need to know about Potassium regulation in the body fluids.The knowledge of this topic is necessary for dealing with hyperkalemia and hypokalemia. Timeline: 0:00 Potassium Physiology 0:45 the role of Insulin 4:46 Renal handling of Potassium 6:55 The Principle Cells 10:23 Alpha Intercalated Cells 11:38 the role of Aldosterone 16:45 Na+ K+ ATPase pump 17:52 Low Na buildup 18:48 High Na buildup 21:47 Effect of NSAIDs 22:14 Low BP causes Renin production 26:18 K+ homeostasis 26:30 Internal K+ Balance 26:43 External K+ Balance 27:11 cause of hyper and hypokalemia 28:15 Physiology of Potassium balance