Complications of cholecystitis and/or biliary colic may also include cholangitis, sepsis, pancreatitis, hepatitis, and choledocholithiasis (10%). In addition, Gallbladder perforation occurs in 10% of patients with cholecystitis. When perforation is localized, it may be seen as pericholecystic fluid by ultrasonography.
Half-life is defined as the time it takes for one half of a radioactive element to decay into a daughter isotope. As radioactive isotopes of elements decay, they lose their radio activity and become a brand new element known as a daughter isotope.
Meitnerium is a radioactive, synthetic element about which little is known. It is classified as a metal and is a solid at room temperature. Meitnerium has seven isotopes with known half-lives. The most stable is meitnerium-278 (278 Mt), with a half-life of about eight seconds. It decays into bohrium-274 (274Bh) through alpha decay. The atomic weight for manmade transuranium elements is based on the longest-lived isotope.