Intermediate
Technical
IVT
transcutaneous monitoring
Pronunciation: trans-kyoo-TAY-nee-us
Non-invasive measurement of oxygen and carbon dioxide levels through the skin surface.
Full Definition
Transcutaneous monitoring involves the continuous, non-invasive measurement of oxygen (TcPO2) and carbon dioxide (TcPCO2) levels through sensors placed on the skin surface. This technology is particularly valuable in neonatal intensive care for monitoring gas exchange without frequent blood sampling. The heated electrodes create local hyperemia to arterialize capillary blood, providing readings that correlate with arterial blood gas values. Regular sensor site rotation is necessary to prevent thermal injury.
Usage
Usage note: Often abbreviated as TcM; specify parameters being monitored (TcPO2, TcPCO2).
In Context
- "Transcutaneous monitoring revealed elevated CO2 levels, prompting adjustment of ventilator settings." — Respiratory therapy note
- "The transcutaneous monitor sensor was rotated to a new site every 4 hours to prevent skin breakdown." — Nursing care documentation
Also known as
TcPO2/TcPCO2 monitoring
transcutaneous gas monitoring
Contrasted with
invasive monitoring
arterial blood gas sampling
Don't confuse with
pulse oximetry
capnography