The stoma drainage is currently dark green liquid. Which statement best describes expected changes as the small intestine absorbs more water and sodium?

• A. Drainage will stay green and watery
• B. Drainage will become thicker and yellow or yellow-brown
• C. Drainage will become clear
• D. Drainage will become black

Answer: (B)

Output color and thickness reflect how much water the small intestine is absorbing. As more water and sodium are reabsorbed, the stoma drainage becomes thicker and more formed, and its color shifts from green toward yellow or yellow-brown. The green, watery drainage initially comes from bile pigments and rapid transit; once absorption reduces the liquid content, the stool concentrates and lightens in color toward yellow-brown. Staying green and watery would mean little absorption remaining; clear would be almost devoid of content; black would raise concern for bleeding or other issues.