<prompt> Reduction of size and vascularity prior to thyroidectomy is done byLugol IodinePropylthiouracilRadioiodinePropranolol  <response>: Ans. a Lugol iodineRef: Bailey and Love 26th edition Page 760 Lugols Iodine: 10 Potassium Iodine 5 Iodide is used on last 10 days before surgery to make the gland firm and stronger and decreases the vascularity of gland 