Author/Editor		Felc, Zlata
Title		Improvement of conventional transcutaneous bilirubinometry results in term newborn infants
Type		članek
Source		Am J Perinatol
Vol. and No.		Letnik 22, št. 4
Publication year		2005
Volume		str. 173-9
Language		eng
Abstract		This prospective study was performed to determine a way to improve conventional transcutaneous bilirubinometry results in healthy term newborn infants. In 118 infants during phototherapy (group A), and in 118 infants without phototherapy (group B), bilirubin determinations were done in duplicate using the Minolta AirShields Jaundice Meter type 101 (transcutaneous bilirubin index (TcB), and the diazometric method on the Hitachi 717 Automated Analyzer (total reacting serum bilirubin SeB). In 112 infants (group C), bilirubin determinations were done in triplicate, using simple direct-reading photometry on the Moltronic Bilirubinometer (direct serum bilirubin BiB). A close correlation between TcB and SeB values was observed in group A (r=0.69;p < 0.001) and in group B (r= 0.59; p < 0.001). The 95% confidence intervals of TcB readings corresponding to SeB were +-80.7 umol/L in group A and +-76.91umol/L in group B, respectively. In group C, using a correctly calibrated BiB with adult sera containing bilirubin concentration in the range 271 to 344umol/L, the 95% confidence intervals of parallel TcB and BiB readings corresponding to SeB were +-28 umol/L. Parallel determinations of the TcB and the BiB in healthy term newborn infants give results almost identical to those of bilirubin determination by the laboratory method.
Descriptors		BILIRUBIN NEONATAL SCREENING CALIBRATION GESTATIONAL AGE INFANT, NEWBORN PROSPECTIVE STUDIES REFERENCE VALUES