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.
Iowa is currently using five area codes. Iowa originally had three area codes, 319,515, and 712, when the numbering system was established in 1947. It was not until thirty three years later in 2000 that Iowa experienced sufficient growth in population and telephone use to need an additional area code.