Results 161 to 170 of about 11,854 (211)
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Shunt effect of carboxyhemoglobin
Critical Care Medicine, 1979Estimation of intrapulmonary blood shunt fraction requires accurate evaluation of pulmonary capillary, arterial, and mixed venous oxygen contents. The presence of carboxyhemoglobin, as well as methemoglobin and sulfhemoglobin, may lead to large errors in the calculated intrapulmonary blood shunt fraction. The errors are most pronounced at low values of
J D, Cohn, P E, Engler
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Carboxyhemoglobin in Nonsmokers
Archives of Environmental Health: An International Journal, 1975A study was made of existing mathematical models for both carbon monoxide (CO) and carboxyhemoglobin (COHb) buildup. From these models a combined model was derived for calculating delta%COHb in nonsmokers in an enclosed space in which excess concentrations of CO may occur.
R M, Jones, R, Fagan
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Annals of Plastic Surgery, 2020
Background Carbon monoxide is a gas produced by the combustion of hydrocarbon products that binds to heme molecules, 240 times more than oxygen, producing carboxyhemoglobin (COHb). As a result of its high affinity, there is shift of the oxyhemoglobin dissociation curve, compromising oxygen transport and delivery to tissues. Our
Salomon, Puyana +8 more
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Background Carbon monoxide is a gas produced by the combustion of hydrocarbon products that binds to heme molecules, 240 times more than oxygen, producing carboxyhemoglobin (COHb). As a result of its high affinity, there is shift of the oxyhemoglobin dissociation curve, compromising oxygen transport and delivery to tissues. Our
Salomon, Puyana +8 more
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Estimation of Carboxyhemoglobin
Environmental Science & Technology, 1999Carbon monoxide can be lethal at concentrations of less than 0.1%. The kinetics and mechanism of its toxicology have been described elegantly by Coburn et al. (J. Clin. Invest. 1965, 44, 1899−1910): CO combines readily with blood hemoglobin to form carboxyhemoglobin (COHb).
William G. Lloyd, Donald R. Rowe
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Carboxyhemoglobin levels in fire fighters
Lung, 1976The occupational effect of carbon monoxide on blood carboxyhemoglobin levels (COHb) from smoke inhalation was studied in 51 fire fighters.
J, Loke +4 more
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Turn-on and Turn-off Fluorescent Probes for Carbon Monoxide Detection and Blood Carboxyhemoglobin Determination [PDF]
ACS Sensors, 2018 Water-soluble, carbazole-based two-photon excitable fluorescent probes MPVC-I ("turn-on") and MPVC-II ("turn-off") are rationally designed and synthesized for the selective monitoring of carbon monoxide (CO).
Taeseung Yoon +2 more
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False Elevation of Carboxyhemoglobin
Pediatric Emergency Care, 2011Carbon monoxide toxicity in infants and children, like adults, produce nonspecific symptoms with normal vital signs necessitating the serum measurement of carboxyhemoglobin (COHb). In infants, the COHb may be falsely elevated.Our goal was to report a case of suspected carbon monoxide toxicity in an infant and the likely cause of the falsely elevated ...
Shruti, Mehrotra +2 more
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Carboxyhemoglobin Elevation in Trauma Victims
The Journal of Trauma: Injury, Infection, and Critical Care, 1999Products of the hemeoxygenase enzyme include carboxyhemoglobin (COH) and bilirubin, which have protective effects in stressed states. Hemeoxygenase-1 enzyme up-regulates in states of oxidative stress. We hypothesized that COH is elevated in septic trauma patients compared with nonseptic patients.A prospective study was carried out at a Level I trauma ...
M, Moncure +4 more
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An evaluation of carboxyhemoglobin spot tests
Annals of Emergency Medicine, 1984A number of spot tests for carboxyhemoglobin are described in the emergency medicine literature. Four of these tests were evaluated for specificity, sensitivity, ease of performance, and ease of interpretation. Second- and third-year emergency medicine residents were given samples of blood and asked to perform each of four spot tests on the samples ...
E J, Otten, J M, Rosenberg, J T, Tasset
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Carboxyhemoglobin Concentrations in Normal Cattle
American Journal of Veterinary Research, 1975SUMMARY Percentage carboxyhemoglobin (HbCO) values were determined in 29 cows and 24 bulls in Minnesota during the summer of 1973. Results indicated that, in normal cattle, the HbCO value was 0.3%. Individual and daily variations in these values were recorded in 2 calves.
D I, Saror +3 more
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