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c/bloodwork·posted 1 year ago by u/coldchain_karen

the baseline labs thing finally clicked for me and I want to write it down

Question Clean Column ×4 Long Haul ×3 Slow Clap ×3

the baseline labs thing finally clicked for me and I want to write it down. Making the case below, and I expect to lose some of it in the comments.

Added ApoB to the panel after a thread here. It told me something the standard lipid panel had been hiding.

My ApoB moved and I spent a fortnight convinced I knew why. The repeat six weeks later was back in range and I had changed nothing.

Repeat testing before acting is standard practice for a reason: regression to the mean does a lot of work on single outlying values.

I will update this if the picture changes rather than quietly leaving it up.

3,060 up / 100 down97% upvoted39 commentsid 1ruo7j22 Jul 2025

39 comments

15 in this archive, depth 5

best — the order this archive was captured in

u/emeka_chowdhury0 points·1 year ago

ApoB counts atherogenic particles rather than the cholesterol they carry, which is why it can diverge from LDL-C and why it is the addition most worth making.

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u/vito_chowdhury1 point·1 year ago

ApoB counts atherogenic particles rather than the cholesterol they carry, which is why it can diverge from LDL-C and why it is the addition most worth

Adding the obvious one — take it to whoever ordered the panel. This board cannot read it for you.

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[removed]1 point·1 year ago

[removed by moderator]

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u/bac_water_banditreconstitution1 point·1 year ago·edited

Panicked about a single result, posted here, got told to repeat it, repeated it, and it was fine.

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u/nayeli_iyer297 points·1 year ago

Have you taken this to whoever ordered it?

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u/mateusz_achebe247 points·1 year ago

weight loss itself moves several of these independently

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u/kaia_kuusela196 points·1 year ago

Different laboratories use different assay platforms with different calibration. Comparing across labs adds a systematic offset that is invisible on the report.

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u/coring_the_stopper149 points·1 year ago

Did anything else change in that window — training, intake, hydration?

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u/coldchain_karenOPcold chain102 points·1 year ago

Small fix — a reference interval is not a treatment target, and the post above uses them interchangeably.

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u/heart_rate_bump58 points·1 year ago

Substantial weight loss independently moves lipids, liver enzymes and several other markers. Attributing a change to a compound while losing weight is confounded by design.

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u/freya_baptista15 points·1 year ago·edited

the trend line matters more than any single value

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u/mikkel_kimani5 points·1 year ago

Correction: that marker is reported in different units by different labs, which explains the tenfold difference you are seeing.

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u/coa_forgery_watch26 points·1 year ago

Took a baseline the week before starting purely because this board told me to. Best five minutes I have spent on this.

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u/coldchain_karenOPcold chain18 points·1 year ago

That is a non-fasting value and the interval you are comparing it against is a fasting one.

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u/cormac_roos135 points·1 year ago

What did the repeat show?

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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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