Hi there I wonder if anyone can give any info - which I realise is a very broad question but any info would be helpful. 
My dad has been diagnosed with a tumour in his kidney which they are going to operate on to remove the whole kidney.  He's 78 and reasonably well - keeps fairly active and no other major health issues. 

He has got notification yesterday that he's to go for a CT scan with dye of his chest.  Is this normal pre op or should we be concerned that things may have spread? 
also I will be his main carer when he comes home - what can I expect and what should I plan (as much as anyone can in these circumstances).

many thanks