• The diagnostic value of the triad umbilical cord blood bilirubin measurement, direct antiglobulin testing and blood group analysis for neonatal hyperbilirubinemia remains unclear in literature. • Currently no guideline recommends screening for hyperbilirubinemia using umbilical cord blood. What is New: • Post-test probability for hyperbilirubinemia correlated exponentially with umbilical cord blood bilirubin in different risk groups defined by direct antiglobulin test and ABO blood group compatibility results. • Exponential functions can be used to calculate hyperbilirubinemia probability.
Stools of 147 children belonging to different age groups were examined for the presence of Clostridium difficile, its cytotoxin and other enteric pathogens. None of the 31 full-term neonates, 5 (16%) of the 32 premature neonates, 27 (46%) of the 59 infants and 1 (4%) of the 25 older children excreted C. difficile in their stools. Faecal cytotoxin was only detected in four infants (7%). There was no correlation with diarrhoea, previous antibiotic therapy, type of diet, or the concomitant presence of other intestinal pathogens. We conclude that colonisation of the intestine by C. difficile is probably acquired from environmental sources and that it cannot be regarded as a significant cause of diarrhoea in children.
A simple method of determining the test distance necessary for an accurate measurement of the intensity distribution from a projector or other luminaire is described. A theoretical analysis of a simplified model establishes a theory which is confirmed by a practical example. A diagram illustrates the general rule for prescribing the ratio of the required test distance to the luminaire diameter as a function of the divergence at 80 per cent of the peak intensity, for two levels of accuracy.
Figure 1 Boxplot of total serum bilirubin concentrations for men and women after restandardisation and exclusion of outliers. IQR, interquartile range.
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