Severity of jaundice The jaundice starts on the head and face, spreads down the trunk and limbs How to measure Observation by eye: blanching the skin Transcutaneous jaundice meter Blood sample: minibilirubin meterSeverity of jaundice The jaundice starts on the head and face, spreads down the trunk and limbs. How to measure: Observation by eye: blanching the skin Transcutaneous jaundice meter Blood sample: minibilirubin meter