[Blood gas analysis].
Blood gas analysis provides valuable information about both the extracellular acid-base status and gas exchange. A blood gas analyzer measures pH, partial pressure of oxygen(pO(2)), partial pressure of carbon dioxide (pCO(2)), O(2) saturation, and hemoglobin concentration. A number of calculated parameters can be derived from these direct measurements such as bicarbonate concentration, base excess, oxygen content, etc. This contribution introduces the basic technical aspects of a blood gas analyzer and then describes some of the parameters that facilitate evaluation of the acid-base status and the oxygenation status of the blood. Finally, proper sampling and handling of blood gas samples is addressed.
Boemke
W
W
Klinik für Anaesthesiologie und operative Intensivemedizin, Charité Campus Virchov Klinikum, Universitätsmedizin Berlin, Berlin. willehad.boemke@charite.de
Krebs
M O
MO
Rossaint
R
R
D001784:Blood Gas Analysis / Q000295:instrumentation / Q000592:standards; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D000860:Hypoxia / Q000097:blood / Q000175:diagnosis; D016343:Monitoring, Intraoperative; D010100:Oxygen / Q000097:blood; D014882:Water-Electrolyte Balance / Q000502:physiology
D002245:Carbon Dioxide; D010100:Oxygen