<prompt> All the following are essential criteria for perinatal asphyxia exceptProlonged metabolic alkalosisPersistence of Apgar score of 0-3 for 5 minHypoxic ischemic encephalopathy HIE in the immediate neonatal periodEvidence of multiorgan dysfunction in the immediate neonatal period  <response>: Essential criteria for perinatal asphyxia Prolonged metabolic or mixed acidemia pH 7.0 on an umbilical aerial blood sample Persistence of Apgar score of 0-3 for 5 min Neurological manifestations, e.g. seizures, coma, hypotonia or hypoxic-ischemic encephalopathy HIE in the immediate neonatal period Evidence of multiorgan dysfunction in the immediate neonatal period Ref: Paediatrics; O.P. Ghai; 8th edition; Page no: 166 