Shocked at diagnosis

  1. My father in law was admitted to hospital just over 2 weeks ago, falls, ? Infection. Rapid deterioration since with deranged bloods and jaundice and some aggitation and very sleepy.  Dr asked to speak with the family yesterday, informed has lung nodule primary cancer with liver mets. Shocked is an understatement. Now been taken off all medication and for palliation! Is this a diagnosis that symptons can happen this quick?