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| name = Breath gas analysis ...vidual by monitoring [[volatile organic compounds]] present in the exhaled breath ...

...ine [[Flow measurement|flowmeter]] able to measure the patient's breath by breath minute ventilation, at the same time a sample of gas is conveyed to the ana ...chanically ventilated, an indirect calorimeter can still measure breath by breath inhaled/exhaled O₂ and CO₂ if interfaced with the ven ...

...tion is to add a mass of oxygen that is proportional to the volume of each breath. This approach is based on the assumption that the volumetric breathing rat ...ores post-dive. Oxygen fraction in the loop was not monitored during these tests.<ref name=Gennser2011 /> ...

...the diver, including immersion, exposure to the water, the limitations of breath-hold endurance, variations in ambient pressure, the effects of breathing ga ..." /><ref name="Panneton 2013" /><ref name="sterba" /><ref name="cheung" /> Breath-hold duration is limited by oxygen reserves, the response to raised carbon ...

...the oxygen, and virtually none of the inert gas is consumed, every exhaled breath from an open-circuit scuba set represents at least 95% wasted potentially u ...ompressed air is about 21%<ref name="popmech-dec06-58"/> oxygen. When that breath is exhaled back into the surrounding environment, it has an oxygen level in ...

...> The end of free mass testing in April 2022 greatly reduced the number of tests taken and may affect the number of cases, although ONS statistics have cont ...ter half of August, [[#New daily tests|testing]] increased from 2.3 to 2.6 tests per thousand population per day.<ref name="OWID"/> ...

...elatively high, as the diver is limited to the oxygen supplied by a single breath, and the risk of hypoxic blackout underwater, followed by drowning, is sign ...or a combination of these. Victims are often established practitioners of breath-hold diving, are fit, strong swimmers and have not experienced problems bef ...

...ref> with the genus ''Ostreopsis'' causing symptoms such as [[Shortness of breath|dyspnea]], fever, [[rhinorrhea]], and cough.<ref>{{Cite journal|last1=Galli ...measured with the Waveband Integrated Bioaerosol Sensor WIBS-4: laboratory tests combined with a one year field study|journal=Atmospheric Chemistry and Phys ...

...etected the radioactive noble gas radon (a decay product of radium) in the breath of the Radium Girls, he turned to [[Charles Norris (medical examiner)|Charl ...ume 3, issue 1, 1956, p. 20. Retrieved December 11, 2017.</ref> Around 180 tests were carried out in 1962 alone. The extent of the radioactive contamination ...