Preparing to Measure Microstream CO2
Use appropriate accessories for:
the patient type (adult, pediatric or neonatal),
the ventilation situation (including humidification)
the duration - short term use, up to 24 hours (typically OR), or long term use (typically ICU).
All accessories are for single patient use only.
Using Microstream Accessories
The Microstream measurement can be operated with the special Microstream accessories only. Refer
to the instructions for use provided with the accessory.
For intubated patient with non-humidified ventilation, you can use a Microstream FilterLine set. For
humidified ventilation, use a FilterLine H Set.
For non-intubated patients, the gas sample is taken through a Nasal FilterLine, or a Smart CapnoLine
(which is a combined oral-nasal FilterLine). In parallel to the measurement of the CO
may be delivered to the patient to support gas exchange. This is done by using an O
or a Smart CapnoLine O
Using the FilterLine and Airway Adapter
Make sure that you do not accidentally connect the luer connector of the gas sample line to an infusion
link or any other links in the patient vicinity.
Attach the female Luer connector to the CO
and screwing the connector into place.
Check that the FilterLine is not kinked.
Change the FilterLine if a
become extremely erratic.
Disconnect the FilterLine during suctioning and nebulizing therapies or suppress sampling by turning
off the pump as described in "Suppressing Sampling (not Mainstream CO2)" on page 221.
Check the table in the Microstream CO
usage times for the different Microstream accessories.
values for non-intubated patients using Microstream accessories will always tend to be lower than
for intubated patients. If values appear extremely low, check whether the patient is breathing through
the mouth or whether one nostril is blocked.
(a combined oral-nasal O
inlet connector by pushing the socket cover aside
INOP appears on the monitor or if the readings
Accessories section of the Accessories chapter for typical
13 Monitoring Carbon Dioxide
, oxygen (O