<prompt> Sequence of changes seen in Raynauds disease is: March 2012Red, blue, whiteWhite, blue, redRed, blue, whiteWhite, red, blue  <response>: Ans: B i.e. White, blue, red Raynauds disease is recognized by the characteristic sequence of blanching constriction of vessels, dusky cyanosis dilation of capillaries filling with slowly flowing deoxygenated blood red engorgement relaxation of aerioles return of oxygenated blood into the dilated capillaries 