Neonatal period extends upto: (A) 21 days of life, (B) 30 days of life, (C) 28 days of life, (D) 35 days of life
Answer is C. Neonatal period extends from bih to <28 days (under 4 wks) of age. First week of life(<7days or <168 hrs) is known as early neonatal period. Late neonatal period extends from 7th day to <28th day. Reference : page 124 Ghai Essential Pediatrics 8th edition