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c/bloodwork·posted 3 months ago by u/heart_rate_bump

[Vendor] WXT order #20 — Germany, 21 days, no drama, receipts inside

Explainer Receipts ×5 Cold Box ×3

Quick one. Canada here.

ferritin works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given advice that simply does not apply outside the US.

Specifics: the route I used took 10 weeks and cost roughly what I expected. The admin was worse than the cost. The thing that would have saved me the most time was knowing which document to ask for at the start.

Happy to answer questions from anyone in the same jurisdiction.

1,850 up / 264 down88% upvoted52 commentsid 2cf0735 Apr 2026

52 comments

14 in this archive, depth 3

best — the order this archive was captured in

u/tomas_kimani196 points·3 months ago

Ferritin tanked from 18 to 3. Small appetite, reduced iron intake, nobody was testing it until I asked.

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u/yara_mensah159 points·3 months ago

Respectfully this is a sample of one presented as a finding.

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u/bence_zamora203 points·3 months ago·edited

Yeah, baseline matters more than any later number.

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u/signe_grimaldi112 points·3 months ago

The evidence standard in c/vendorvetting gets called too strict about once a month, and every time, the thread ends with the complainant agreeing.

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u/heart_rate_bumpOP86 points·3 months ago

Ferritin tanked from 22 to 40. Small appetite, reduced iron intake, nobody was testing it until I asked.

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u/anya_rautio24 points·3 months ago

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

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u/tidy_vialdrawer_watch91 points·3 months ago

Rodent data is rodent data. Dose scaling is not linear and the models tell you what to investigate, not what to expect.

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u/transit_variance25 points·3 months ago

Is that fasted?

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[deleted]35 points·3 months ago

[deleted]

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u/freya_baptista17 points·3 months ago

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

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u/mikkel_ogunleye49 points·3 months ago

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

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u/heart_rate_bumpOP25 points·3 months ago

eGFR noise on rapid loss is real. 8 week noise, 7 week trend. Do not panic at week 36.

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u/tomas_kimani12 points·3 months ago

Is that fasted?

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u/cormac_roos30 points·3 months ago

Yeah, baseline matters more than any later number.

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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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