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.
The latter example would be a binding price floor, while the former would not be binding. Note that the price floor is below the equilibrium price so that anything price ABOVE the floor is feasible. Another way to think about this is to start at a price of 100, and go down until you the price floor price or the equilibrium price. If you hit the price floor first, it is binding. However, if you hit the equilibrium price first, the price floor is not binding is not.