http://definitions.uslegal.com/r/reckless-endangerment/
Reckless endangerment is a crime consisting of acts that create a substantial risk of serious physical injury to another person. The accused person isn't required to intend the resulting or potential harm, but must have acted in a way that showed a disregard for the foreseeable consequences of the actions. The charge may occur in various contexts, such as, among others, domestic cases, car accidents, construction site accidents, testing sites, domestic/child abuse situations, and hospital abuse. State laws and penalties vary, so local laws should be consulted.
http://www.legis.state.pa.us/WU01/LI/LI/CT/HTM/18/00.027.005.000..HTM
§ 2705. Recklessly endangering another person.
A person commits a misdemeanor of the second degree if he
recklessly engages in conduct which places or may place another
person in danger of death or serious bodily injury.
Cross References. Section 2705 is referred to in sections
2709.1, 2711 of this title; section 6711 of Title 23 (Domestic
Relations).