Blood gas control
OwnerAllan L. Louderback, Paul R. Szatkowskiinventors
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Abstract
There is disclosed a synthetic liquid control standard for use in the quality assurance of blood gas instrumentation systems which comprises an aqueous solution of a dye buffered to a pH of from about 7.1 to about 7.7 and containing sufficient bicarbonate ion to provide a pCO.sub.2 of from about 20 to about 80, ethylene glycol to provide a viscosity of from about 3 to about 9 centipoises and gaseous oxygen to provide a pO.sub.2 of from about 50 to about 400 retained in a sealed receptacle.
Claims11
A completely synthetic liquid control standard for use in the quality assurance of blood gas instrumentation systems comprising an aqueous solution of a dye buffered to a pH of from about 7.1 to about 7.7 and containing sufficient bicarbonate ion to provide a pCO.sub.2 of from about 20 to about 80, ethylene glycol to provide a viscosity of from about 3 to about 9 centipoises and promote clearing of proteinaceous material from said instrumentation systems and gaseous oxygen to provide a pO.sub.2 of from about 50 to about 400 retained in a sealed receptacle.
The method of making a synthetic liquid control standard for use in the quality assurance of blood gas instrumentation systems and having a viscosity resembling that of blood comprising admixing an aqueous solution of a dye buffered to a pH of from about 7.1 to about 7.7 with sufficient bicarbonate ion to provide a pCO.sub.2 of from about 20 to about 80, ethylene glycol to provide a viscosity of from about 3 to about 9 centipoises and gaseous oxygen to provide a pO.sub.2 of from about 50 to about 400 retained in a sealed receptacle.
Dependencies are inferred from the claim text.