Background: Transcutaneous bilirubinometry (TCB) has different results in different societies. In the present study the diagnostic effectiveness of TCB was determined in a group of Iranian neonates with severe jaundice. Materials and methods: Totally, 525 samples form 260 neonates were surveyed. Neonates were examined during the first 26±6 hours and entered the study if fulfilled the inclusion criteria. TCB was calculated by Billi Check. then, 30 minutes later, a blood sample was obtained and bilirubin was determined according to the standard protocol. Chi square and Fisher’s exact test were applied, when appropriate. Results: Totally, 63 neonates with severe jaundice required phototherapy. TCB had 92.1% sensitivity, 92.4% specificity, 97.3% negative predictive value (NPV) and 79.5% positive predictive value (PPV). Conclusion: TCB revealed to be a suitable diagnostic tool for neonates with severe jaundice. It could safely applied for bilirubin of less than 15mg/dl.

Keywords: Bilirubin, Transcutaneous bilirubinometry (TCB), Neonate

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