Nephrology certified in nephrology is called a "nephrologist". The term "nephrology" was first used in about 1960. Before then, the specialty was usually referred to as "kidney medicine." Nephrology concerns the diagnosis and treatment of kidney diseases, including electrolyte disturbances and hypertension, and the care of those requiring renal replacement therapy, including dialysis and renal transplant patients. Many diseases affecting the kidney are systemic disorders not limited to the organ itself, and may require special treatment. Examples include acquired conditions such as systemic vasculitides (e.g. ANCA vasculitis) and autoimmune diseases (e.g., lupus), as well as congenital or genetic conditions such as
Johnson Organs six ranks. Continuing with church organ construction, Johnson built organs of increasing size. His first two-manual organ was Opus 13, 1849, at the Congregational Church in Westfield, Massachusetts. This organ contained about 15 ranks. Further expanding his territory and size, Opus 40, a 34-stop three-manual organ, was built in 1855 for the Park Presbyterian Church in Troy, New York. Another 1855 organ is believed to be the oldest Johnson organ which still exists in its original form. It is Johnson's Opus 43, built at the First Ward Presbyterian Church (later the Westminster Presbyterian Church) in Syracuse, New York. In 1871,