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.
Potassium levels are normally checked during an annual physical, especially if you are being monitored for heart disease or are taking heart medications. A potassium test may be needed during any serious illness or whenever a diagnosis or evaluation for high blood pressure or kidney disease is being done.