Capillary Blood pH by a Dilution Technic

[摘要] A technic is described for collecting arterialized capillary blood in a small heparinized polyethylene centrifuge tube. The ρH is measured after dilution and injection into a Beckman micro blood ρH Assembly. Dilution of the blood with saline results in an average increase of 0.027 ρH units. This change in ρH on dilution is eliminated by inclusion of calcium in the diluent.The ρH of capillary blood drawn and measured as described does not differ significantly from that of undiluted arterial blood drawn from the same patient.

[学科分类] 过敏症与临床免疫学