Fig. 1
From: Hyperkalemia in a patient with myasthenia gravis: case presentation
Schematic illustration of the recommended diagnostic approach to hyperkalemia with low renal potassium secretion rate [4,5,6]. Abbreviations: CCD cortical collecting duct, ECF extracellular fluid, Aldo aldosterone, CAH congenital adrenal hyperplasia, ENaC epithelial sodium channel, NSAID nonsteroidal anti-inflammatory drugs, PHA pseudohypoaldosteronism, MR mineralocorticoid receptor