Welcome to this forum.
Firstly try not to panic.
It’s positive that your father has been referred to haematology, who will advise the GP even if they assess that your father doesn’t need to be seen by them at present. GPs only see one or two cases of myeloma in their careers on average, so they are not experts in the condition and associated conditions.
Paraproteins are by definition abnormal, they are cloned cells, which ‘shouldn’t be there’. However a significant percentage of the population live with a low level of paraproteins which cause no obvious ill effects. This is called MGUS, or Monoclonal Gammopathy of Unknown Significance. A diagnosis of MGUS can be any level of paraprotein under 30g/l, although there are a few myeloma patients who have had some damage at levels under 30g/l, which is why cases need to be discussed with expert haematology consultant. I suspect your father has been told that he has a level of 5g/l, so at what is actually a pretty low level that is very unlikely to be causing your father physical damage. (BTW at diagnosis Light Chains can be in the 1000s,even 10s of 1000s, so a marginally raised level isn’t worrying from a haematological point of view)
Haematology will review your father’s results, if they think there is any chance of him having active (or Smoldering , a half way stage)Myeloma they will want to see him to give him a whole range of tests. If they recognise his results as indicating MGUS then they are likely to ask his GP to retest him every few months to see whether these results are stable over time.
If they don’t ask to see your father it definitely won’t be because they have written him off. Sometimes myeloma patients are acutely ill, very close to death at diagnosis, and they are definitely not written off!
I hope this helps
Jane
