A 45-year-old man presents with the following skin changes (as shown in the image). What relevant history should be taken to diagnose this condition?
ADementia
BHistory of dietary pattern, dementia, and diarrhea
CDietary history
DDepression
A patient with hemolytic anemia has a defect in the enzyme glucose-6-phosphate dehydrogenase. Which of the following pathways is directly affected by this defect?
AGlycolysis
BPentose phosphate pathway
CTCA cycle
DUrea cycle
A patient is found to have sun-sensitive dermatitis, diarrhea, and dementia. He must be suffering from the deficiency of which of the following?
AIron
BRiboflavin
CNiacin
DFolic acid
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