Blood Gas Monitoring, Transcutaneous

**Definition:** The noninvasive measurement or determination of the partial pressure (tension) of oxygen and/or carbon dioxide locally in the capillaries of a tissue by the application to the skin of a special set of electrodes. These electrodes contain photoelectric sensors capable of picking up the specific wavelengths of radiation emitted by oxygenated versus reduced hemoglobin.

**Tree numbers:** - E01.370.225.124.100.100.600.100 - E01.370.370.380.600.100 - E01.370.386.700.100.600.100 - E05.200.124.100.100.600.100

**Synonyms:** - Transcutaneous Blood Gas Monitoring