Residential Care / Assisted Living: What Is Residential Care for the Elderly? Residential Care Facilities for the Elderly (RCFE) serve persons 60 and older. They provide room, board, housekeeping, supervision, and personal care assistance with basic activities like personal hygiene, dressing, eating, and walking.
A potassium test is used to measure the amount of potassium in your blood. Potassium is an electrolyte important for the functions of cells.
You may have this test to diagnose or monitor kidney disease. The most common cause of high potassium levels is kidney disease. Potassium is important to heart function. Your provider may order this test if you have signs of high blood pressure or heart problems.