elevated BUN and U in blood panel, creatine use

Medical Q&A [Moderated]
1

Hi,

I know of your opinion on tests and values but I ended up having a blood test this week and my BUN and Urea values came out elevated, while creatinine was within the normal range. Ive been supplementing 4g creatine daily for 5+ months, but past week I haven’t been taking it. Do you think creatine can influence these values and is it something I should be concerned about and further investigate? For context these were the values and reference ranges I was provided, and these were part of a blood test ordered by my psychiatrist for some mild sleep issues (maybe worth mentioning that when I can’t sleep I find that I pee fairly often during the night) :

Creatinine: 1.14 mg/dL (0.70-1.20 reference)
BUN: 22.62 mg/dL (6-20 reference)
U: 48.4 mg/dL (13-43 reference)

Thank you

2

These labs are discussed in this article: Abnormal Labs in Exercise Part I: Kidney Function | Barbell Medicine

Without knowing much more about you, a Cr of 1.1 and BUN of 22 would not typically raise concern in a young, otherwise healthy patient. I am actually not sure what Urea measurement this is referring to, though.