fasting overnight fasting Philippe Rocca-Serra Sebastian Duesing A fasting with a duration of 8–12 hours, typically occurring overnight. A.M. Simundic et al., Standardization of collection requirements for fasting samples: For the Working Group on Preanalytical Phase (WG-PA) of the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM), Clinica Chimica Acta, Volume 432, 2014, Pages 33-37, ISSN 0009-8981, https://doi.org/10.1016/j.cca.2013.11.008. Overnight fasting commonly occurs prior to a blood draw scheduled in the morning. https://github.com/obi-ontology/obi/issues/494 overnight fasting metadata complete