@article{ref1,
title="Relationship between venous and arterial carboxyhemoglobin levels in patients with suspected carbon monoxide poisoning",
journal="Annals of emergency medicine",
year="1995",
author="Touger, M. and Gallagher, E. John and Tyrell, J.",
volume="25",
number="4",
pages="481-483",
abstract="STUDY OBJECTIVE: To test the hypothesis that venous carboxyhemoglobin (V-COHb) levels accurately predict arterial (A-COHb) levels. DESIGN: Prospective comparison of A-COHb and V-COHb levels in patients with suspected carbon monoxide (CO) poisoning. SETTING: Municipal hospital emergency department with contiguous multiplace hyperbaric chamber staffed 24 hours a day. PARTICIPANTS: Unselected convenience sample of 61 adults with suspected CO toxicity. INTERVENTION: Simultaneous sampling of arterial and venous blood. RESULTS: Correlation between V-COHb and A-COHb showed an r value of .99 (95%CI, .99 to .99), and an r2 value of .98. Agreement between V-COHb and A-COHb levels was examined by use of a plot of arteriovenous differences against the mean of the two measurements. The mean arteriovenous difference was .15% COHb (95%CI, .13% to .45%), with 95% of the differences ranging from 2.4% COHb to -2.1% COHb. CONCLUSION: Venous COHb levels predict arterial levels with a high degree of accuracy. Patients with suspected CO poisoning can be screened with the use of venous blood, without the need for arterial puncture.<p /><p>Language: en</p>",
language="en",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}