BETA - What is a urine protein electropheresis (UPEP) and when should it be done? Why is a 24 hour urine sample necessary?

BETA - What is a urine protein electropheresis (UPEP) and when should it be done? Why is a 24 hour urine sample necessary?
How do treatments vary between myeloma and amyloidosis?
What percentage of myeloma patients also have amyloidosis?
BETA - What is immunofixation (IFE) and why is it an important test?
BETA - What is a Serum Protein Electrophoresis (SPEP)?
Is there a certain type of myeloma patient who would be more likely to develop amyloidosis?