ISSN:
1365-2044
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Medicine
Notes:
We investigated the variability of arterial, mixed venous and peripheral venous oxygen saturation readings in three co-oximeters in regular use on two Intensive Care Units. Over a 2-week period, 96 readings were obtained from each of the following machines; two AVL 912 co-oxylite co-oximeters (Machines A and B, Biomedical Instruments, Graz, Austria) and one IL-282 (Machine C, Instrumentation Laboratories, Lexington, MA, USA). The coefficient of variation in the arterial oxygen saturations was extremely small on all three machines (〈0.43%). The coefficient of variation in the mixed venous samples, however, ranged from 1.96 to 4.61% on machine A, and from 2.73 to 4.71% on machine B, but only from 0.17 to 1.47% on machine C. The variation in mixed venous saturations obtained from a single blood sample repeatedly analysed on machines A and B was large enough to influence clinical management.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2044.1994.tb04267.x
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