vialroom

#reconstitution 2026-01-09

Friday21 messages4 participantstimes are UTC
Highlights from this day
  • appetite_back — if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration 15:58
  • reta_resting_hr — how much do i lose to dead space with a 31G pin 17:04
  • appetite_back — update on the earlier thing the meniscus thing is real. read it at eye level or you are guessing by a unit either way 17:27
  • fake_tracking — took me a year to stop over-diluting. the measurement error at 4 units is worse than the convenience 17:50
  • reta_resting_hr — if the maths gives you 13.7 units, change the volume. do not try to hit 13.7, take that with a pinch of salt 18:42
CH

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

CH

im getting bubbles in the barrel every single time, what am i doing wrong

5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose, i think

AB

if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration

CH

10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100

FT

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

AB

aim the diluent at the glass wall, not at the powder. it goes in gentler

AB

i swirl for about thirty seconds and then leave it. never had one fail to dissolve, i think

if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space

bac water

i keep a spare vial of bac water in the fridge purely so i never rush the maths

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

update on the earlier thing the meniscus thing is real. read it at eye level or you are guessing by a unit either way

FT

swirl it. do not shake it. the foam is denatured protein and you are not getting it back

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

FT

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