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.
Your doctor may order a potassium test if they suspect you have an electrolyte imbalance or as part of a routine check-up. Potassium is an electrolyte. Electrolytes become ions when theyâre in a solution, and they conduct electricity. Our cells and organs require electrolytes to function normally.