When discussing the amiloride diuretic, you mention that it can cause HYPOkalemia when talking about it's action on ENaC (29:50) causing sodium loss and again at (30:38), and HYPERkalemia later when talking about how it is Potassium sparing (30:47). Are these first mentions supposed to be hypoNATremia? I would understand how disabling ENaC would make one hyponatrimic, urinating out larger amounts of sodium, but the hypokalemia doesn't fit.