Clinical chemistry the denser blood cells and platelets to the bottom of the centrifuge tube, leaving the liquid serum fraction resting above the packed cells. This initial step before analysis has recently been included in instruments that operate on the "integrated system" principle. Plasma is in essence the same as serum, but is obtained by centrifuging the blood "without" clotting. Plasma is obtained by centrifugation "before" clotting occurs. The type of test required dictates what type of sample is used. A large medical laboratory will accept samples for up to about 700 different kinds of tests. Even the largest of laboratories rarely
Blood, Sweat and Towers Blood, Sweat and Towers Blood, Sweat and Towers is the debut album of English punk rock band the Towers of London, released on 5 June 2006. The album features thirteen tracks, four of which have been released in the United Kingdom as singles. The album was heavily influenced by Sex Pistols' "Never Mind the Bollocks" and Guns N' Roses' "Appetite for Destruction". Sonically the songs contained on "Blood, Sweat and Towers" are played in a loose punk rock style. The song "Fuck It Up" features on the album twice: one version is an acoustic rendition, while the other is a