Blood gas tension Blood gas tension Blood gas tension refers to the partial pressure of gases in blood. There are several significant purposes for measuring gas tension; the most common gas tensions measured are oxygen tension (PO), the carbon dioxide tension (PCO) and carbon monoxide tension (PCO). The subscript "x" in each symbol represents the source of the gas being measured; ""a"" meaning arterial, ""A"" being alveolar, ""v"" being venous, ""c"" being capillary. Blood gas tests (such as arterial blood gas tests) measure these partial pressures. PO – Partial pressure of oxygen at sea level (765 mmHg) in arterial blood is between 75
The Machine Stops (album) "Lost In Science". The album entered the Oficial UK charts at number 29. This was the highest chart position since Choose Your Masques in 1982 which achieved the same chart position. All tracks written by Dave Brock except where stated. The Machine Stops (album) The Machine Stops is a concept album by space rock band Hawkwind, released on 15 April 2016. It is inspired by the E.M. Forster novel of the same name. It is Hawkwind's twenty-ninth studio album, Hawkwind's first album recorded without the involvement of Tim Blake since 2010's "Blood of the Earth" and the first to feature