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c/bloodwork·posted 10 months ago by u/cardio_endpoint_c

reading ferritin threads from 2024 and half of it aged badly

Baseline Receipts ×2

Thinking out loud about this: reading ferritin threads from 2024 and half of it aged badly.

Draw at the same point in the week now, fasting, same lab. The noise dropped enormously once I standardised.

Brought the whole set to my clinician rather than one flagged value. Completely different conversation.

Tracked ApoB against the weight trend for a year. The correlation was much weaker than I expected and that was worth knowing.

Would rather be corrected in public than confident in private.

3,598 up / 3,167 down53% upvoted2 commentsid xvv4m20 Sep 2025

2 comments

2 in this archive, depth 1

best — the order this archive was captured in

u/a1c_arcMOD53 points·10 months ago

Retitled — the original asserted a causal claim the post does not support.

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u/greta_chukwu37 points·10 months ago

Time of day, fasting state, hydration and recent exercise all move common markers. Standardising the draw conditions is free and it removes most of the apparent variability.

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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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