試題詳解

59. 74歲健康男性因大量下消化道出血來到急診室，鼻胃管引流出金黃色膽汁，請問下一步處置何者最為適當？
(A) Anorectal examination with anoscopy and proctoscopy
(B) Technetium-labeled red blood cell scanning
(C) Angiography
(D) Immediate colonoscopy
(E) CT scan of the abdomen and pelvis