Melaena- dark stool its causes and newest treatment

Melaena:

- Passage of black tarry stool due to presence of digested

blood.

- It indicates that heamorrhage has remained for ≥ 8 hours in

the GIT

* AE:

Site of bleeding: is not merely above ligament of Treitz but may

extended up to right colon.

So, AE of melaena =

i- AE if upper GIT bleeding (heamatemyesis)

ii- Jejunum & ileum: 2T + 2C

· Typhoid ulcer

· T.B enteritis

· Cancer head of pancrease

iii- Colon:

· Rhight sided tumor

· Ulcerative colitis.

D D of dark stool:

- melaena

- Iron ingestion

- haemolytic Jaundice.