Sequence of changes seen in Raynaud's disease is: March 2012
Ans: B i.e. White, blue, red Raynaud's 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)
Red, blue, white
White, blue, red
Red, blue, white
White, red, blue