A chronic alcohol abuser goes to the ER with weakness - a sore - beefy red tongue - loss of vibration and position sense - arm and leg dystaxia - elevated levels of methylmalonic acid in the urine - and anemia with an MCV above 105 fL. What is your d

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1. A chronic alcohol abuser goes to the ER with weakness - a sore - beefy red tongue - loss of vibration and position sense - arm and leg dystaxia - elevated levels of methylmalonic acid in the urine - and anemia with an MCV above 105 fL. What is your d