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M Spike Values

A MyMyelomaTeam Member asked a question 💭
Boston (Milton), MA

Does anyone know why some m spikes are reported as percentages?
Lowell general reports it as a percentage:
The monoclonal protein peak accounts for 0.46 g/dL of 1.49 g/dL
So does that mean that I divide the 1.49 by 0.46 for my actual m spike value or is it the 0.46?

When I go to Dana Farber twice a year, they simply report:
:M spike 1 is 0.86 g/dL

Thank you Barbara

May 15, 2023
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A MyMyelomaTeam Member

Right but you can see where it’s confusing, because do you divide the percentage of abnormal protein from the normal protein to get an M spike one
I’m a nurse at a different hospital but I’m going to go to the lab and ask because we have a Dana-Farber satellite there

May 15, 2023
A MyMyelomaTeam Member

Geez, I thought I was beginning to understand these lab values. I've never seen it written like this. So I think they are subtracting your abnormal protein from your normal proteins to get that m spike number. Check with your doctor. 🥴 Mine just says m spike

May 15, 2023
A MyMyelomaTeam Member

I did but never get an answer
Machine only
I’ll check w onc next visit

May 16, 2023
A MyMyelomaTeam Member

Which lab is doing it this way? I would just have to call them.

May 16, 2023
A MyMyelomaTeam Member

Well that’s what I’m trying to verify
I believe that you multiply the .49 times the 1.49 in that that is the actual M Spike.
I accidentally said divide, but it would be multiplied because it’s a percentage of the total protein

May 16, 2023

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