Clinical features of "hypothyroidism" in a newborn are all except:
d. Mental retardation(Ref: Nelson's 20/e p 2669-2773, Ghai 8/e p 516-521)Mental retardation (Intellectual disability) develops by 3-6 months of age (not in neonatal period).
Sluggishness +++
Large tongue
Large posterior fontanel
Mental retardation
Endocrinology