[Evaluation of the bilirubinometer Hico-Bilimat A 700]

The Hico-Bilimeter A 700 is a simple filter photometer for the determination of total bilirubin in neonatal serum, reading the absorbance of the undiluted sample at two wavelengths. Precision of the measurements is good, with linearity acceptable up to a concentration of 18 mg/dl. Compared to the values obtained with the reference method the results below 18 mg/dl are 16% too high on average; above 18 mg/dl the scatter of results is markedly increased. Even a moderate hemolysis shows a distinct influence on the measurements. Using the instrument tested no reliable results could be obtained, especially in hemolytic samples.