if you only get one thing, get a fasting insulin. it is the one that becomes impossible later
#bloodwork 2026-04-23
Thursday41 messages8 participantstimes are UTC
Highlights from this day
- yyz_vial — coming back to this ferritin and b12 fall quietly when you are barely eating. check them twice a year 19:54
- dez_domains — slightly off topic but a small egfr dip is often dehydration. rehydrate and retest before you panic 20:36
- gall_bladder_gav — homa-ir is fasting glucose times fasting insulin over a constant. the constant differs by unit system, thats just me 20:52
- fasting_insulin — for the archive i had a potassium that came back high and the repeat was normal. the tube had been knocked about thyroid moving slightly is common enough that i would… 21:00
- back_from_away — my alt has come down a lot since i started losing, is that expected 22:24
anyone had a result that turned out to be a lab error
do you fast for the full 12 hours or is 8 enough
get a baseline
[edited]if your glucose is in mg/dL the divisor is 405. if it is mmol/L it is 22.5, take that with a pinch of salt
*2ml not 2.5
nobody here is reading your bloods as a clinician. we are reading them as people who have had a lot of bloods
coming back to this ferritin and b12 fall quietly when you are barely eating. check them twice a year
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egfr dropped a few points, dehydration or something real
my potassium came back weird and the retest was normal, whats that about
coming back after 26 months, what changed in your numbers
the most useful thing i did was get a full panel before i started. everything since has been comparable
get fasting insulin at baseline. you cannot go back and get it once you have started
apob is the better marker and it is harder to get. i track both because i can only get one reliably, happy to be corrected
an isolated lipase a bit over range with no symptoms is usually nothing. lipase with severe pain is not
anyone have before and after numbers they are willing to post
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*Medutest not the other one
slightly off topic but a small egfr dip is often dehydration. rehydrate and retest before you panic
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my b12 is borderline, supplementing or eating differently
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homa-ir is fasting glucose times fasting insulin over a constant. the constant differs by unit system, thats just me
| Test | Why now |
|---|---|
| Fasting insulin | impossible to get a true baseline afterwards |
| Full lipid panel with apoB | the comparison is the whole point |
| HbA1c | 90-day average, so it lags your start |
| CMP + CBC | cheap, and the reference for everything after |
| Ferritin, B12, TSH | these fall quietly on a low intake |
for the archive i had a potassium that came back high and the repeat was normal. the tube had been knocked about
thyroid moving slightly is common enough that i would repeat it before doing anything
baseline 58
wk 2 61
wk 4 64
wk 6 67
wk 8 66
wk 10 65 (held dose from wk 7)if a result frightens you, that is a conversation with a clinician. we will help you read it, we will not tell you it is fine, n of 1 obviously
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update from 8 months ago: a1c down, apob unchanged, and i am genuinely annoyed about the apob
the FLOW result is why my nephrologist changed her position on this entirely
mine did the same
do you get bloods every 8 months or only when something changes
fast properly or do not bother. an eight hour fast and a twelve hour fast are different tests, ill dig out the number
if your glucose is in mg/dL the divisor is 405. if it is mmol/L it is 22.5
apob or ldl, which one are you all actually tracking
apob if you can
sorry to jump in thyroid moving slightly is common enough that i would repeat it before doing anything
is a fasting insulin worth paying for privately if my gp will not do it
alt and ast coming down as you lose liver fat is common and is a good sign
i had a potassium that came back high and the repeat was normal. the tube had been knocked about
thats normal
good numbers
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my numbers: a1c and triglycerides both moved a lot, ldl barely moved at all, we shall see
a1c is a ninety day average. retesting at week six tells you almost nothing, we shall see
thats the 90 day thing
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not a chat question
fasting insulin
[edited]fridge-temps.csv
461 rows · not retained in the public archive
my alt has come down a lot since i started losing, is that expected
| Test | Why now |
|---|---|
| Fasting insulin | impossible to get a true baseline afterwards |
| Full lipid panel with apoB | the comparison is the whole point |
| HbA1c | 90-day average, so it lags your start |
| CMP + CBC | cheap, and the reference for everything after |
| Ferritin, B12, TSH | these fall quietly on a low intake |
for the archive post the numbers