Portal de Periódicos da CAPES

Sampling Errors in pH and Blood Gas Analysis—An Evaluation of Three New Arterial Blood Samplers

1986; SAGE Publishing; Volume: 23; Issue: 3 Linguagem: Inglês

10.1177/000456328602300314

1758-1001

A. S. Hutchison, F.J. Dryburgh, S H Ralston,

Hemodynamic Monitoring and Therapy

We have tested the accuracy, acceptability and general performance of three recently-marketed samplers for arterial blood gas measurement (the Corning Arterial Blood Sampler, the Concord 'Pulsator' and the Sarstedt 'Monovette'). All three greatly reduce or eliminate the error of venous sampling, and the Corning and Sarstedt samplers eliminate the risk of dilution of the sample by excess heparin solution. A positive bias in pO2 measurement, more marked at higher levels, was demonstrated with the Concord and Sarstedt samplers, and the latter carry a slightly increased risk of cross-infection. None of the samplers completely overcame potential sampling errors.