<prompt> Which of the following is FALSE regarding a normal pregnancy?Fall in free T4T3 in 3rd trimesterTSH falls in the first and second trimester but increases in the third trimesterTSH rises in the first and second trimester but falls in the third trimesterThere is an increase in Thyroid binding globulin  <response>: In pregnancy there is a relative iodine deficiency and increased renal excretion. Ref: Karla Philip, 33rd Edition, Page 304 