CO
2
Monitoring
15-19
OR
Figure 1.The disposable Nomoline Airway Adapter Set is an alternative to using a combination of the multiple
patient use Nomoline Adapter and a disposable Nomoline Extension / T-adapter.
The Nomoline Adapter may be used with other third party sampling lines and cannulas. Please however note that
the Nomoline Family of sampling lines are designed for optimal performance and measurement fidelity when used
with the ISA gas analyzers. For instance, when connecting to a respiratory circuit, the Masimo T-adapter provides a
central gas sampling point thereby minimizing the risk of sampling line occlusion (see below)
Figure 2. For optimal water handling, always use T-adapters with the sampling point in the center of the adapter,
as shown to the left above.
Nomoline Family sampling line replacement
Nomoline Family sampling lines should be replaced according to good clinical practice or when the sampling line
gets occluded. Occlusion occurs when water, secretion etc. is aspired from the respiratory circuit to such an extent
that ISA cannot maintain the normal 50 sml/min sample flow. This situation is indicated by a red flashing gas inlet
connector and an alarm message “Sampling Line Clogged”; Replace the Nomoline and wait until the gas inlet
connector switches to green indicating that the ISA gas analyzer is ready for use.
15.9.6.2 IRMA Airway Adapter
The IRMA airway adapter is inserted between the endotracheal tube and the Y-piece of the breathing circuit. The
respiratory gas measurements are obtained through the XTP™ windows in the sides of the adapter. The XTP
windows are transparent to light in the wavelength ranges of interest and they are specially designed using the
latest advances in material technology to provide a window minimizing the impact of water vapor on light
transmission.