weighing the vial before you reconstitute is the only way to catch an underfill
U-100 syringe: 1 unit = 0.01 ml
10u = 0.10 ml
25u = 0.25 ml
50u = 0.50 ml
100u = 1.00 ml
mg drawn = ml drawn x mg/ml#reconstitution 2026-05-06
Wednesday30 messages7 participantstimes are UTC
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temperature of the diluent does not matter. how fast you push it in does
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is it normal for the cake to look slightly collapsed on one side
swirl dont shake
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took me a year to stop over-diluting. the measurement error at 4 units is worse than the convenience, ask me again in a month
dead space
5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose
slightly off topic but if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space
why does everyone say 2ml specifically and not 1ml
thats fine
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foam is bad
[edited]if the maths gives you 13.7 units, change the volume. do not try to hit 13.7
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my 10mg vial weighed 11.4g on the jewellery scale, is that wrong
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check your maths
read it at eye level
anyone else find the 40mg vials harder to get fully dissolved than the small ones
[edited]give it 9 minutes at room temperature before you decide it has not dissolved
is there any reason not to just always use 2ml
one unit is 0.01ml
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i have never once regretted using a rounder number and a slightly bigger volume
how much do i lose to dead space with a 31G pin
thats 5mg/ml
do i swirl for a specific length of time or just until its clear
ok so dead space in a standard insulin syringe hub is small but it is not nothing over a month
i use bac water even for a single-use vial because it stings less, which is not the reason it exists
while im here bac water or sterile water for something im going into weekly for 4 weeks
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i swirl for about thirty seconds and then leave it. never had one fail to dissolve
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a slightly collapsed cake is cosmetic. a puddle in the bottom is not, ask me again in a month
my rule is one concentration for everything so i never have to think about it at 7am
not sterile water