AN EVALUATION OF THE AVL 937C BLOOD-GAS AND pH MICROANALYSER

Publisher Website
Google Scholar
Abstract
The AVL 937C blood-gas and pH microanalyzer was evaluated with particular reference to its use in obstetrics and in neonatal pediatrics in which its ability to analyze blood samples as small as 40 .mu.l would be of particular value. Analyzing samples of cord blood, maternal venous blood and fetal scalp blood, the reproducibility over the range of values measured was excellent with samples of 40-100 .mu.l. SD of the variation in values measured on samples collected in syringes were PO2 [O2 tension] 0.11 kPa [kiloPascal]; PCO2 [CO2 tension] 0.21 kPa; pH 0.005 unit. The same values for specimens collected in capillary tubes were: PO2 0.19 kPa; PCO2 0.43 kPa; pH 0.013 unit. Analysis of tonometered blood samples showed a similar high standard of accuracy. The 91-98% confidence limits for the measurement of blood-gas values in samples collected in syringes were: PO2 -0.22 to +0.49 kPa; PCO2 -0.53 to +0.42 kPa. The same values for samples collected in capillary tubes were: PO2 -0.38 to +0.70 kPa; PCO2 -0.97 to +0.86 kPa.

This publication has 0 references indexed in Scilit: