Less than 15% of dialysis fistulas remain patent and can function without problems during the entire period of a patient's dependence on hemodialysis. The mean problem-free patency period after creation of native fistulas is approximately 3 years, whereas prosthetic polytetrafluoroethylene (PTFE) grafts last 1-2 years before indications of failure or thrombosis are noted.
Which president is credited with inspiring the Maxwell House slogan âGood to the last dropâ?-Ronald Reagan-Theodore Roosevelt-Ulysses S. Grant-John F. Kennedy. Answer: The author of the famous âGood to the Last Dropâ slogan is former president Theodore Roosevelt.
Maxwell House has since then said that the slogan was originally written by  Clifford Spiller, a former president of General Foods. Yet, in 2009, the coffee company reverted back to its original claims that the slogan came from Roosevelt.