JOHN GREIM / SCIENCE PHOTO LIBRARY JOHN GREIM / SCIENCE PHOTO LIBRARY
Portrait of an anaesthetist at work, showing her administering gas through a face mask to maintain general anaesthesia in a patient. General anaesthesia describes a state of unconsciousness, analgesia (pain relief) and relaxation of skeletal muscle. A combination of drugs is typically used: thiopentone (by injection) is used to induce anaesthesia; maintenance is achieved with a combination of inhalation (of halothane, enflurane or isoflurane), intravenous drugs, and muscle relaxants.
Model release available. Property release not required.