#reconstitution 2025-08-14

weighing the vial before you reconstitute is the only way to catch an underfill, thats one data point

sanity check my maths before i pin myself with something stupid

thats fine

too dilute imo

one unit is 0.01ml. 100 units is 1ml. everything else in this channel follows from that

the last few units are a real loss. i accept it rather than tilting the vial and drawing air

dead space in a standard insulin syringe hub is small but it is not nothing over a month

while im here label the date too. you will not remember which vial is which by week 28, i have it written down somewhere

swirl dont shake

foam is bad

does temperature of the bac water matter at all

slightly off topic but the powder is stuck to the stopper, do i care

if the maths gives you 13.7 units, change the volume. do not try to hit 13.7

nobody here should be telling you a dose. we can check your arithmetic, thats a different thing

a slightly collapsed cake is cosmetic. a puddle in the bottom is not

is there any reason not to just always use 2ml

coming back after 25 months, has the pinned recon volume advice changed

is the meniscus reading actually a real source of error or am i overthinking

can i add more bac water later to a vial ive already reconstituted

i have never once regretted using a rounder number and a slightly bigger volume

what do you do with the last 20 units when you cant draw them cleanly

update on the earlier thing 30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right

do you let it come to room temp before drawing or draw it cold

not sterile water

is a slightly cloudy solution ever ok or is that always a bin it

thats the vacuum

write the date on

while im here is it worth buying a 3ml syringe for the diluent or is the insulin one fine

benzyl alcohol is what makes it bacteriostatic. it is about 0.9% typically

how much do i lose to dead space with a 30G pin

anyone got a photo of what a properly dissolved vial looks like

nope, redo it

label the vial

took me a year to stop over-diluting. the measurement error at 4 units is worse than the convenience