Results 131 to 140 of about 10,799 (179)

Carboxyhemoglobin: a primer for clinicians

Undersea and Hyperbaric Medicine, 2018
One of carbon monoxide’s several mechanisms of toxicity is binding with circulating hemoglobin to form carboxyhemoglobin, resulting in a functional anemia. While patients with carbon monoxide poisoning are often said to be “cherry-red,” such discoloration is rarely seen.
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Carboxyhemoglobin levels in fire fighters

Lung, 1976
The occupational effect of carbon monoxide on blood carboxyhemoglobin levels (COHb) from smoke inhalation was studied in 51 fire fighters.
J, Loke, W C, Farmer, R A, Matthay, J A, Virgulto, A, Bouhuys   +4 more
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False Elevation of Carboxyhemoglobin

Pediatric Emergency Care, 2011
Carbon 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, Marcia, Edmonds, Rodrick K, Lim   +2 more
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An evaluation of carboxyhemoglobin spot tests

Annals of Emergency Medicine, 1984
A 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, 1975
SUMMARY 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, R R, Engel, V, Perman, J B, Stevens   +3 more
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Carboxyhemoglobin Elevation in Trauma Victims

The Journal of Trauma: Injury, Infection, and Critical Care, 1999
Products 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, C E, Brathwaite, E, Samaha, R, Marburger, S E, Ross   +4 more
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Carboxyhemoglobin Levels in Banked Blood

Chest, 1984
To determine the prevalence of carboxyhemoglobin levels in banked blood exceeding Air Quality Standards (level of carboxyhemoglobin greater than 1.5 percent), we analyzed banked blood for the level of carboxyhemoglobin from 101 randomly selected samples. Of 101 units of banked blood, 49 (49 percent) had carboxyhemoglobin levels greater than 1.5 percent,
W S, Aronow, W J, O'Donohue, J, Freygang, M H, Sketch   +3 more
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Temporal Variation of Carboxyhemoglobin Concentrations

Archives of Environmental Health: An International Journal, 1969
Carboxyhemoglobin concentrations ([COHb]) were measured in 15 subjects by analysis of alveolar air samples collected at two-hour intervals during waking hours on seven consecutive days. Overall mean values were 3.80% COHb for five cigarette smokers and 1.64% COHb for ten nonsmokers. Analysis of the results indicates that long-term average [COHb] can be
P M, McIlvaine, W C, Nelson, D, Bartlett
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CARBOXYHEMOGLOBIN LEVELS AS AN INDEX OF HEMOLYSIS

Pediatrics, 1971
Carbon monoxide (CO) and bilirubin are formed in equimolar amounts during the catabolism of heme. In demonstrating increased endogenous CO formation from accelerated hemolysis it is important to separate out the effect of variable exogenous CO exposure.
R R, Engel, F L, Rodkey, C E, Krill
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Carboxyhemoglobin and the Access to Oxygen

Archives of Environmental Health: An International Journal, 1973
Carboxyhemoglobin (COHb) alters the oxyhemoglobin dissociation curve in such a manner that oxygen is released to the tissues with great difficulty and at a lower oxygen tension. The known effects on heart and brain of breathing .Sow concentrations of carbon monoxide are primarily related to this leftward shift and perhaps also to combination with ...
Stephen M. Ayres, Stanley Giannelli, Hiltrud Mueller   +2 more
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