CV and mad panic behaviour

[Gointocarlton]

Just as a poser... if someone in an Oncology ward, seriously ill, contracts the seasonal flu and it finishes them off (excuse the lack of tact), is the cause of death listed as seasonal flu or xyz cancer?

I can add some perspective through some experience. My father in-law had Myeloma and back in 07, needed an operation to put a pin in the femur as bone embrittlement (I think thats the term) made it risky to not have it done (ie if the bone broke, he would likely bleed to death). He was a very ill man however it was deemed better to take the risk of surgery as opposed to not do it, he accepted the risk and wanted it done. At the completion of the surgery, as they were moving him, he went into cardiac arrest and never recovered. Cause of death was cardiac arrest (not myeloma) despite a very long list of other ailments related to myeloma (and non hodgkin lymphoma). So its sort of similar...I think.