One important result of lake and reservoir enrichment is increased growth of microscopic floating plants, algae, and the formation of dense mats of larger floating plants such as water hyacinths (Photos 1 and 2) and Nile cabbage.
What is percutaneous biliary drainage? Percutaneous transhepatic biliary drainage is a procedure where a small, flexible, plastic tube is placed through the skin into the liver in order to drain an obstructed bile duct system. The liver produces bile which aids digestion of fats.
Percutaneous transhepatic biliary drainage (PTBD) is done to open a blocked bile duct. Your healthcare provider will talk to you about how to prepare for the procedure. He may tell you not to eat or drink anything after midnight on the day of your procedure. He will tell you what medicines you may or may not take on the day of your procedure.