, cotinine, and thiocyanate assay compared for distinguishing smokers from non-smokers.
is often caused by various exposures but can also be caused by increased endogenous production of carbon monoxide.
Multiple linear regression was carried out aiming to estimate the influence of the variables for climate and pollution on exhaled levels of COex and COHb, generating an equation based on the variables [PM.sub.2,5] md, COmd, Tmp, URAmp, Pamp, Velmp andFQmd, for carbon monoxide (COex = 86.4-6,72PMmd-0.534COmd1.3 1Tmp-0.172URAmp + 0.067Pamp102velmp+0.421FQmd)and for carboxyhemoglobin
(COHb = 11.6-1.22PMmd-0.098COmd0.236Tmp-0.0292URAmp +0.0162Pamp-0.0206 velmp+0.0770 FQmd).
Some 68% (49) of the workers agreed to a blood test being taken during rest days or prior to starting their work shift, with the aim of determining hemoglobin (Hb), hematocrit (Hcto), and carboxyhemoglobin
(COHb), by means of conventional hematic biometry.
The traditional belief is that carbon monoxide toxicity arises from the formation of carboxyhemoglobin
, which decreases the oxygen-carrying ability of the blood and inhibits the transport, distribution, and use of oxygen by the body (Fan, 2009)".
Carbon monoxide binds to hemoglobin to form carboxyhemoglobin
and leads to hypoxia.
Aim: The aim of our study was to investigate the relation of blood carboxyhemoglobin
level with presentation finding and clinical properties and to demonstrate neurological and cardiological findings which are indicators of tissue hypoxia in patients followed up because of carbonmonoxide (CO) poisoning.
Increased arterial carboxyhemoglobin
concentrations in chronic obstructive pulmonary disease.
To compare the results for different cases, the concentrations from each simulation were used to calculate carboxyhemoglobin
(COHb) values for an exposed occupant in each occupied room.
Met-Hb is usually measured by a multiwavelength oximeter that can directly measure different hemoglobin species, including oxygenated hemoglobin ([O.sub.2]-Hb), deoxyhemoglobin (deoxy-Hb), and carboxyhemoglobin
Prior to the walking test, the patients had a median oxygen saturation ([s.sub.p][O.sub.2]) of 83% (range 6987) and oxygen saturation fraction of percent ([s.sub.a][O.sub.2]) of 83.3% (range 69.4-87.3), a median of [p.sub.a][O.sub.2] of 91.5 mmHg (range 81-114.8), a median of p50 of 56.85 mmHg (range 45.23-77.25), a median of hemoglobin of 0.74 g/dL (range 0.65-0.82), a median of functional hemoglobin of 0.71 [beta]g/dL (range 0.630.76), a median of carboxyhemoglobin
of 0.0033 [beta]g/dL (range 0.0015-0.0051), and a median of lactate of 8.11 [beta]g/dL (range 5.41-15.3).
Relationship between venous and arterial carboxyhemoglobin
levels in patients with suspected carbon monoxide poisoning.