A 38-year-old woman presents with recurrent episodes of severe abdominal pain and psychiatric symptoms. Her urine turns dark during attacks. Family history reveals similar episodes. What is the inheritance pattern?
AAutosomal recessive
BAutosomal dominant
CX-linked recessive
DX-linked dominant
EMitochondrial
A 47-year-old man presents with acute severe abdominal pain and vomiting. He has a family history of similar episodes. Serum amylase is normal but urinary porphobilinogen is elevated. What triggers should be avoided?
AFasting
BAlcohol
CBarbiturates
DStress
EAll of the above
A 51-year-old woman presents with progressive dysphagia and weight loss. She has a history of Barrett's esophagus on surveillance. Upper endoscopy shows a stricturing lesion. What is the most appropriate next step?
ABarium swallow
BMultiple biopsies of the lesion
CCT chest and abdomen
DEndoscopic ultrasound
EPET scan
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