This episode is loosely based on the true events during the Russian campaign in Chechnya where an ex-KGB agent was poisoned and later died from a radioactive material known as Pulonium 210. The ex-agent was poisoned by consuming contaminated sushi.
Tony mentions the movie D.O.A. (1949) when describing a plot of someone being poisoned by radiation. Matthew Marsden, who plays the character who is poisoned in this episode, was in the movie DOA: Dead or Alive (2006).
The "hospital" that the lieutenant is in, is in fact not a hospital but a military research institute. They use the name and the logo of the Armed Forces Radiobiology Research Institute for the hospital where the man exposed to radiation is dying. There is no hospital at the AFRRI, just research labs.