Commotio cordis. Commotio cordis (Latin, agitation of the heart) is an often lethal disruption of heart rhythm that occurs as a result of a blow to the area directly over the heart (the precordial region), at a critical time during the cycle of a heart beat causing cardiac arrest.
A ZIP Code is a five digit number that identifies a specific geographic mail delivery area. The acronym ZIP refers to Zone Improvement Plan, a plan implemented by the USPS in the early 1960âs to improve the sorting and delivery of mail. There are approximately 43,000 ZIP Codes in the United States.
The states using the most area codes are California which is currently using 32 area codes, Texas 26 area codes, Florida 18 area codes, and New York 16 area codes. Although area codes are not assigned based upon population the locations with greater populations have an increased demand for area codes. The non-geographic area codes utilized in the United States are 456, 500, 533, 544, 566, 577, 700, 710, 800, 844, 855, 866, 877, 888 and 900. While many United States locations are assigned a single area code others are within geographic overlays.