A magnesium test checks the level of magnesium in the blood. Magnesium is an important electrolyte needed for proper muscle, nerve, and enzyme function. It also helps the body use energy and is needed to move other electrolytes (potassium and sodium) into and out of cells.
Floors in Pricing. A price floor is the lowest amount at which a good or service may be sold and still function within the traditional supply and demand model. Prices below the price floor do not result in an appropriate increase in demand.
Both price ceilings and floors are forms of price controls. While a price ceiling dictates the maximum price of a good or service, a price floor refers to the lowest price for which a good or service may be sold. Both of these concepts are based on the idea of protecting the consumer or the market.