A 26-year-old man from India visits the clinic with complaints of feeling tired all the time and experiencing lack of energy for the past couple of weeks. He also complains of weakness and numbness of his lower limbs. He has been strictly vegan since the age of 18, including not consuming eggs and milk. He does not take any vitamin or dietary supplements. Physical examination reveals a smooth, red beefy tongue along with lower extremity sensory and motor deficits. What other finding is most likely to accompany this patient’s condition?
AUpper limb weakness
BPsychiatric symptoms
CDecreased visual acuity
DMicrocytic anemia
EAtaxia
A 29-year-old woman came to the emergency department due to severe symptoms of intoxication and unexplained convulsions. She is accompanied by her husband who reports that she takes disulfiram. There is no prior personal and family history of epilepsy. She shows signs of confusion, hyperirritability, and disorientation. On further evaluation, the patient is noted to have stomatitis, glossitis, and cheilosis. A chest X-ray is unremarkable. The deficiency of which of the vitamins below is likely to be the major cause of this patient’s symptoms?
AB12
BB6
CB9
DB2
EB3
A 37-year-old man with Crohn disease is admitted to the hospital because of acute small bowel obstruction. Endoscopy shows a stricture in the terminal ileum. The ileum is surgically resected after endoscopic balloon dilatation fails to relieve the obstruction. Three years later, he returns for a follow-up examination. He takes no medications. This patient is most likely to have which of the following physical exam findings?
ADry skin and keratomalacia
BWeakness and ataxia
CHyperreflexia with tetany
DGingival swelling and bleeding
EPallor with koilonychia
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