Expired Air | ScienceGate

The performance of a new mask (Mix-O-Mask) for giving supplementary oxygen in clinical situations was compared with three other methods in a patient with cor pulmonale. Measurements were made of the intra-tracheal gas concentrations and arterial blood levels of oxygen and carbon dioxide. The new mask was as reliable as Ventimasks in delivering a claimed oxygen concentration and did not cause rebreathing of expired air. The mask proved durable when worn for sixteen hours in a day and was preferred for comfort by the patient.

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An Optimal Cutoff Point of Expired-Air Carbon Monoxide Levels for Detecting Current Smoking: in the Case of a Japanese Male Population whose Smoking Prevalence was Sixty Percent

Journal of Epidemiology ◽

10.2188/jea.8.140 ◽

1998 ◽

Vol 8 (3) ◽

pp. 140-145 ◽

Cited By ~ 8

Author(s):

Takeo Nakayama ◽

Akio Yamamoto ◽

Takayoshi Ichimura ◽

Nobuo Yoshiike ◽

Tetsuji Yokoyama ◽

...

Keyword(s):

Carbon Monoxide ◽

Smoking Prevalence ◽

Cutoff Point ◽

Male Population ◽

Optimal Cutoff ◽

Current Smoking ◽

Japanese Male ◽

Optimal Cutoff Point ◽

Expired Air

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POST-LARYNGECTOMY VOCAL REHABILITATION USING EXPIRED AIR AND AN EXTERNAL FISTULA METHOD

The Laryngoscope ◽

10.1288/00005537-197504000-00013 ◽

1975 ◽

Vol 85 (4) ◽

pp. 690-699 ◽

Cited By ~ 11

Author(s):

Nigel Edwards

Keyword(s):

Vocal Rehabilitation ◽

Expired Air

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Endogenous Formation of Carbon Monoxide. The Co Concentration in the Inspired and Expired Air of Hospital Patients

Acta Physiologica Scandinavica ◽

10.1111/j.1748-1716.1951.tb00762.x ◽

1951 ◽

Vol 22 (2-3) ◽

pp. 137-141 ◽

Cited By ~ 50

Author(s):

TORGNY SJöSTRAND

Keyword(s):

Carbon Monoxide ◽

Co Concentration ◽

Hospital Patients ◽

Endogenous Formation ◽

Expired Air

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Respiratory water and heat loss of the black duck during flight at different ambient temperatures

Canadian Journal of Zoology ◽

10.1139/z71-112 ◽

1971 ◽

Vol 49 (5) ◽

pp. 767-774 ◽

Cited By ~ 29

Author(s):

M. Berger ◽

J. S. Hart ◽

O. Z. Roy

Keyword(s):

Heat Loss ◽

Water Loss ◽

Pulmonary Ventilation ◽

Evaporative Heat Loss ◽

Total Heat Loss ◽

Ambient Temperatures ◽

Black Duck ◽

Respiratory Heat Loss ◽

Metabolic Water ◽

Expired Air

Pulmonary ventilation and temperature of expired air and of the respiratory passages has been measured by telemetry during flight in the black duck (Anas rubripes) and the respiratory water and heat loss has been calculated.During flight, temperature of expired air was higher than at rest and decreased with decreasing ambient temperatures. Accordingly, respiratory water loss as well as evaporative heat loss decreased at low ambient temperatures, whereas heat loss by warming of the inspired air increased. The data indicated respiratory water loss exceeded metabolic water production except at very low ambient temperatures. In the range between −16 °C to +19 °C, the total respiratory heat loss was fairly constant and amounted to 19% of the heat production. Evidence for the independence of total heat loss and production from changes in ambient temperature during flight is discussed.

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Acid-base equilibrium during acute long-lasting experiments in artificially ventilated cats

AJP Regulatory Integrative and Comparative Physiology ◽

10.1152/ajpregu.1979.236.1.r126 ◽

1979 ◽

Vol 236 (1) ◽

pp. R126-R131

Author(s):

C. Galletti ◽

M. G. Maioli ◽

E. R. Sanseverino

Keyword(s):

Carbon Dioxide ◽

Oxygen Partial Pressure ◽

Partial Pressure ◽

Artificial Ventilation ◽

Venous Blood ◽

Co2 Concentration ◽

Acid Base ◽

Base Equilibrium ◽

Acid Base Equilibrium ◽

Expired Air

Experiments were carried out to study blood acid-base equilibrium in the cat during experiments with artificial ventilation. Blood acid-base equilibrium was examined in the arterial and venous blood by analyzing pH, carbon dioxide and oxygen partial pressure, and plasma bicarbonates. Artificial ventilation was regulated on the basis of this analysis; CO2 concentration in expired air was monitored throughout the experiment. An attempt was made to verify if artificial ventilation could be regulated indirectly only on the basis of CO2 concentration in expired air. The most appropriate acid-base equilibrium was maintained when CO2 concentration in expired air was kept within the range of 3.9-4.1%.

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