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Biomedical subjects

K N Christensen

Publications and source records attributed to K N Christensen.

32 records · Page 2Linked to original sources
PubMed1977

A simple method of monitoring carbon dioxide output in anaesthetized patients.

The mean CO2 output during anaesthesia in paralyzed patients can be monitored by continuous capnographic analysis of the total exhaled gases, the latter being mechanically integrated by pumice canisters. The gas is evacuated from the Hafnia A circuit via an ejector flowmeter. The results are not influenced by the flow rates employed.

Anesthesia↗
PubMed1976

The flow requirement in a non-polluting Mapleson C circuit.

Capnography and measurement of the respiratory minute volume were carried out on normal, conscious subjects during breathing of pure O2 via a Mapleson C modification of a Magill attachment, with and without continuous gas evacuation. The measurements were performed in two series, with intermittent discharge and with continuous evacuation. Rebreathing was calculated in relation to the test subject's basal respiratory minute volume, measured at the commencement of the test. The measurements indicated CO2 accumulation at a flow below 200% of the respiratory minute volume. There was no significant difference between the systems with and without evacuation.

Adult↗