The biggest two I always look at for Mark....and my patients in general....Bilirubin level and WBC. The bilirubin because it is really a direct indication of how the liver is working and is less affected by others things like the Alk Phos, ALT and AST can be. WBC for the infection concerns....too high has an infection, too low and you could get one.
Of course I could make a great argument as a nurse that all of them are the most important for one reason or another. I also think that some are more important for than others for different people. Like someone who struggles with clotting is going to really watch platelets. One the CBC...complete blood count....the RBC's, Hct, HGB, WBC's and platelets are the biggest ones....the rest have to do with the size and such of the RBC's or the percent of WBC's.
And I agree CA 19-9 but we know it's not always accurate for cc.
I could go on and on but I will stop now. It seems that every number is important for something.
Any advice given is based on my experiences and should not be substituted for any medical recommendations. Please speak with your provider before making any changes.