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c/bloodwork·posted 9 months ago by u/anders_vermeulen

someone explain bloodwork to me like I have not read a paper in years

Baseline

Long-ish post, sorry. tl;dr at the bottom.

I have been tracking eGFR against eGFR for 3 weeks because I could not find anyone who had. The correlation is weaker than I expected, which is itself mildly interesting given how confidently people link the two in here.

Caveats up front: one person, one lab, one assay, no control, and I changed my training in the middle of it, which was stupid.

tl;dr: probably real, definitely smaller than the threads imply, and not worth reorganising your week around.

252 up / 32 down89% upvoted18 commentsid 1rripk24 Oct 2025

18 comments

15 in this archive, depth 4

best — the order this archive was captured in

u/coldchain_karencold chain16 points·9 months ago

the 21 month eGFR check is the routine

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u/anders_vermeulenOP19 points·9 months ago

ALT is where the fatty-liver story shows up first

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u/anders_vermeulenOP11 points·9 months ago

A1c moves slowly, quarterly is plenty

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u/freya_baptista5 points·9 months ago

Do you have baseline to compare to?

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[removed]14 points·9 months ago

[removed by moderator]

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u/ahmed_fonseca5 points·9 months ago·edited

A1c moves slowly, quarterly is plenty

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u/isabela_guerrero4 points·9 months ago

redact identifying details from lab PDFs before posting

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u/anders_vermeulenOP3 points·9 months ago

baseline is the most important A1c measurement, you cannot collect it later

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u/neha_rahimi-16 points·9 months ago

post reference ranges with your numbers, units differ by country and lab

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u/liv_okafor1 point·9 months ago

the 13 month baseline labs check is the routine

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u/forest_plot_fionastats9 points·9 months ago

Strongly agree. ALT is where you catch the liver story early.

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u/liver_enzyme_liz3 points·9 months ago

ALT is where the fatty-liver story shows up first

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u/employer_carveout11 points·9 months ago

I am going to push back on this slightly.

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About c/bloodwork

What to measure before you start, what to re-measure, and how to interpret movement without panicking. ApoB over LDL-C, HOMA-IR as a crude free tool, ALT and the fatty-liver story, eGFR noise during rapid loss, and the deficiencies that a 1,100-calorie appetite will hand you.

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