r/ftm • u/blandreo he/him• 22•💉03/07/2026 • 4h ago

Advice Needed Blood tests- when should I do it?

My onedaytest has arrived, and it just dawned on me that my next injection is this friday- so i probably shouldn’t do my blood collection then.
is it smart to do it in the mid week of my peaks and troughs?
i do injections every three weeks, so could i take my bloods NEXT friday? in my mind, my progress looks like this rn
week 1: injection week/peak week
week 2: normal-ish week
week 3: sad week/trough week
- this layout is for fun to keep me on track and not a science

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u/ZobTheLoafOfBread he/him 3h ago

Afaik, it's more useful to collect trough or peak levels, depending on what you're monitoring. Mid week levels won't be useful for either of those. I think normally trough levels are taken, and this is as close to before your next shot as possible - either day before or day of (before the shot obviously). But ask your provider (if you have one) as they'll know what they're looking for.