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Sidestream CO
Measurement
2
Sidestream CO
Description
The M3015A Measurement Server Extension has a sidestream carbon dioxide respiratory gas
measurement for the Monitor monitoring device. It is designed to be used with the M3000A/
M3001A Measurement Server for adult, pediatric, or neonatal patients, in a hospital
environment and during patient transport in and outside hospitals by clinical users. The
patients can be intubated or non-intubated.
CO
alveolar air into pulmonary capillary blood and the elimination of carbon dioxide from
pulmonary capillary blood and its transfer into alveolar air.
CO
the patient's intubation system. CO
patient's overall respiratory status.
Blood Gas concepts important to this section are:
• Airway Respiration Rate (AwRR)—The number of inspirations and expirations per
minute.
• End Tidal CO
ration.
• Inspired Minimum CO
tion.
• Instantaneous CO
• Ventilation—The movement of air in and out of the lungs by inspiration and expiration.
Measurements
The sidestream CO
waveform together with numerics for End-tidal CO
(AwRR), and Inspired Minimum Carbon Dioxide (ImCO
Factors affecting accurate measurement of sidestream CO
• Proper connection between the Extension and the patient's respiratory system.
• Temperature of the patient's breath.
• Amount of water vapour in the patient's breath.
• Barometric pressure at the site of measurement acquisition.
• Other gases, most notably N 2 O and O
The EtCO
based on the absorption of infrared radiation by certain gases.
Infrared light is absorbed by CO
concentration in the gas mixture. By using an infrared detector to measure the absorption, the
CO
48
Measurement
2
respiratory gas measurements indicate the efficiency of the transfer of oxygen from
2
respiratory gas measurements are evaluated as gas passes through the airway adapter on
2
(EtCO
)—The highest partial pressure of CO
2
2
(ImCO
2
—The CO
2
measurement produces respiratory CO
2
(End Tidal Carbon Dioxide) measurement for Carbon Dioxide uses a technique
2
concentration in a gas can be derived.
2
respiratory gas measurements are an indication of the
2
)—The lowest partial pressure of CO
2
measurement at any instant.
2
(EtCO
2
).
2
2
, in the gas mixture.
2
. The amount of absorption varies according to the CO
2
measured during one expi-
2
during inspira-
2
gas readings in a real-time CO
2
), Airway Respiration Rate
2
respiratory gas are as follows:
Introduction to the Instrument
2
2
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