<prompt> Weight Gain in the second year of life is ___1 kg2 kg3 kg4 kg  <response>: The average bih weight of neonates is about 3 kg. During the first a few days after bih, the newborn loses extracellular fluid equivalent to about 10 of the body weight. Most infants regain their bih weight by the age of 10 days. Subsequently, they gain weight at a rate of approximately 20-40 g per day for the first 3 months of life. Thereafter, they gain about 400 g weight every month for the remaining pa of the first year. An infant usually doubles his bih weight by the age of 5 months. The bih weight triples at 1 year and is four times at 2 years of age. Thus, the weight at 5months, 1 year and 2 years is approximately 6, 9 and 12 kg, respectively. The weight of a child at the age of 3 years is approximately five times that of the bih weight. At 5 years, the expected weight can be calculated by multiplying the bih weight by 6, at 7 years by 7 and at 10 years by 10. It follows that the expected weight at 3, 5, 7 and 10 years is approximately 15, 18, 21 and 30 kg, respectively. On an average, a child gains about 2 kg every year between the ages of 3 and 7 years, and 3 kg per year after that till the pubeal growth spu begins. Approximate anthropometric values by age Age Weight kg Length or Heightcm Head circumference cm Bih 3 50 34 6 months 6 doubles 65 43 1 year 9 triples 75 46 2 years 12 quadruples 90 48 3 years 15 95 49 4 years 16 100 50 Ref : ghai 9edition Pg 13 