<prompt> Severe thiamine deficiency is associated with:Decreased RBC transketolase activityIncreased clotting timeDecreased RBC transaminase activityIncreased xanthic acid excretion  <response>: Ans. A Decreased RBC transketolase activityRef: Harper 31e page 185Thiamine is a coenzyme of Erythrocyte transketolase so its activity is decreased if Thiamine deficiency 