Pseudohypoaldosteronism Type I By L Aimee Hechanova, MD, Texas Tech University Health Sciences Center, El Paso Reviewed / Revised May 2022 | Modified Sep 2022 View Patient Education Diagnosis Treatment Pseudohypoaldosteronism type I is a group of rare hereditary disorders that cause the kidneys to retain too much potassium but excrete too much sodium and water, leading to hypotension.