foam is bad
#reconstitution 2026-02-27
Friday16 messages5 participantstimes are UTC
Highlights from this day
- knees_first — it should be completely clear with no floaters. cloudy means stop weighing the vial before you reconstitute is the only way to catch an underfill 20:43
- batch_bandit — my rule is one concentration for everything so i never have to think about it at 7am 20:54
- batch_bandit — what do you do with the last 25 units when you cant draw them cleanly i use bac water even for a single-use vial because it stings less, which is not the reason it… 20:57
- batch_bandit — genuine question the last few units are a real loss. i accept it rather than tilting the vial and drawing air, for what its worth 22:13
anyone got a photo of what a properly dissolved vial looks like
it should be completely clear with no floaters. cloudy means stop
weighing the vial before you reconstitute is the only way to catch an underfill
a slightly collapsed cake is cosmetic. a puddle in the bottom is not
my rule is one concentration for everything so i never have to think about it at 7am
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what do you do with the last 25 units when you cant draw them cleanly
i use bac water even for a single-use vial because it stings less, which is not the reason it exists
thats the vacuum
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if i add 2.5ml to a 15mg vial what concentration am i actually at
bacteriostatic water for anything multi-use. sterile water has no preservative in it at all, from memory
the meniscus thing is real. read it at eye level or you are guessing by a unit either way
[edited]label the date too. you will not remember which vial is which by week 4
dead space in a standard insulin syringe hub is small but it is not nothing over a month
10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100
genuine question the last few units are a real loss. i accept it rather than tilting the vial and drawing air, for what its worth
not sterile water
im getting bubbles in the barrel every single time, what am i doing wrong