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Mainstream CO
Measurement
2
Mainstream CO
Description
The M3016A Measurement Server Extension has a mainstream carbon dioxide respiratory
gas measurement for the Monitor monitoring device. It is designed to be used with the
M3000A Measurement Server for adult, pediatric, or neonatal patients, in a hospital
environment and during patient transport in and outside hospitals by clinical users.
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
tion.
• Inspired Minimum CO
• Instantaneous CO
• Ventilation—The movement of air in and out of the lungs by inspiration and expiration.
Measurements
The mainstream CO
waveform together with numerics for End Tidal CO
(AwRR), and Inspired Minimum Carbon Dioxide (ImCO
Factors affecting accurate measurement of mainstream CO
• Correct cleaning of the windows on the airway adapter and the transducer.
• Correct placement of the transducer on the airway adapter.
• 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
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
56
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
)—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
)—Lowest partial pressure of CO
2
measurement at any instant.
2
(EtCO
2
O and O
, in the gas mixture.
2
2
. The amount of absorption varies according to the CO
2
measured during one expira-
2
during inspiration.
2
gas readings in a real-time CO
2
), Airway Respiration Rate
2
).
2
respiratory gas are as follows:
2
Introduction to the Instrument
2
2
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Troubleshooting
