A heel is the bottom, back part of a shoe or boot that provides elevation. The styling and construction of a heel may vary (i.e., stacked, stilletto, spiked, sculptured, kitten).
About Nurse Shoes:
About OSHPD (for medical workers):
Office of Statewide Health Planning and Development (OSHPD) is a government agency dedicated, among other things, to provide information about facilities and products that meet the safety standards for health care working environments.