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Real members of MyMyelomaTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.

Cold And Bloodwork

A MyMyelomaTeam Member asked a question 💭
Baltimore, MD

I thought I saw proof posting that their FLC numbers went up if they had bloodwork during a cold/ vaccine. I’m due to have my mm bloodwork Monday and I’m finally getting over my cold. I’d there a chance my bloodwork could be off if they do it even if I’m not completely over the cold?

October 18
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A MyMyelomaTeam Member

Hey Donna, my labs do fluctuate after infections and vaccines. It's important to realize that we need to look at trends with our labs, not just one set of labs.

October 18
A MyMyelomaTeam Member

Yes my husband keeps telling me that.

October 18
A MyMyelomaTeam Member

My blood draw numbers, particularly light chains do change with colds and respiratory infections . Statistically there is some variation between tests, but your oncologist should discuss any important trends or differences. I acquired an application that stores the results of all my labs whether blood draws or imaging that typically is available from your cancer centers or hospitals. This can be useful if you change treatment centers or oncologists as well.

October 18
A MyMyelomaTeam Member

How about getting a vaccine post 2 weeks after a cold any thoughts

October 18
A MyMyelomaTeam Member

It's possible that having a cold or recently receiving a vaccine could affect your bloodwork results. Infections and immune responses can sometimes cause fluctuations in various blood parameters, including free light chain (FLC) numbers. If you're concerned about the accuracy of your results, it might be worth discussing Show Full Answer

It's possible that having a cold or recently receiving a vaccine could affect your bloodwork results. Infections and immune responses can sometimes cause fluctuations in various blood parameters, including free light chain (FLC) numbers. If you're concerned about the accuracy of your results, it might be worth discussing this with your healthcare provider. They can provide guidance on whether to proceed with the bloodwork as scheduled or if it might be better to wait until you're fully recovered.

October 18

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