it should be completely clear with no floaters. cloudy means stop, ill dig out the number
#reconstitution 2026-05-09
Saturday29 messages7 participantstimes are UTC
Highlights from this day
- fibre_first — my vial pulled the water in on its own, is that the vacuum or did i do something 21:25
- fibre_first — 10mg in 1ml is 10mg/ml, so 2.5mg is 25 units. thats the one i use temperature of the diluent does not matter. how fast you push it in does 21:57
- oasis_ola — the last few units are a real loss. i accept it rather than tilting the vial and drawing air 22:58
my vial pulled the water in on its own, is that the vacuum or did i do something
❤️18🧊1
lyophilised powder is far more robust than people think. it is the solution that is fragile
if the powder is on the stopper, tap it down before you add anything. it will still dissolve either way
🧪4🤝4
temperature of the diluent does not matter. how fast you push it in does
i use bac water even for a single-use vial because it stings less, which is not the reason it exists
the vacuum will pull it in. let it. fighting it is how you get a face full of aerosol
give it 3 minutes at room temperature before you decide it has not dissolved
do you draw up with the same pin you inject with
⚠️8
i was wrong about this last year: it is fine to draw cold, it just stings more going in
is there any reason not to just always use 2ml
dead space in a standard insulin syringe hub is small but it is not nothing over a month
if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space
❤️6
10mg in 1ml is 10mg/ml, so 2.5mg is 25 units. thats the one i use
temperature of the diluent does not matter. how fast you push it in does
🔥10💀11
a slightly collapsed cake is cosmetic. a puddle in the bottom is not
i keep a spare vial of bac water in the fridge purely so i never rush the maths
nobody here should be telling you a dose. we can check your arithmetic, thats a different thing
coming back to this anyone worked out a recon volume that puts 12mg on a round unit mark
whats the smallest volume you would trust yourself to measure on a u100
i swirl for about thirty seconds and then leave it. never had one fail to dissolve
if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration
✅7❤️5
why does everyone say 2ml specifically and not 1ml
read it at eye level
update from 17 months ago: switched to a single concentration and have not miscalculated since
the jewellery scale is a good habit but calibrate it, they drift badly
the last few units are a real loss. i accept it rather than tilting the vial and drawing air
10mg vial
+ 1.0ml -> 10.0 mg/ml 0.5mg = 5u 1mg = 10u
+ 2.0ml -> 5.0 mg/ml 0.5mg = 10u 1mg = 20u
+ 2.5ml -> 4.0 mg/ml 0.5mg = 12.5u (dont)
+ 5.0ml -> 2.0 mg/ml 0.5mg = 25u 1mg = 50udoes temperature of the bac water matter at all
thats fine
bac water