<prompt> Most sensitive parameter in monitoring iodine deficiency control programme is:GoitreUrine T3.T4Growth retardationNeonatal hypothyroidism  <response>: Ans: D Neonatal hypothyroidism Ref: Parks Preventive and Social Medicine, 22nd edition. Pg 579Explanation:Iodine level in salt at consumption level 15 ppm.Iodine level in salt at production level 30 ppmIodine oil injection will provide protection for 4 years.Sensitive indicator for consumption of appropriate level of iodine is urine level of iodine.Any area is said to be endemic to IDD. if prevalence of goiter is 10 among general population or 5 among school going children or median iodine excretion is 100mgI.RD.A- 150 m gram.Most sensitive parameter in monitoring iodine deficiency control programme is - Neonatal hypothyroidism. 