vialroom

#reconstitution 2025-03-06

Thursday44 messages8 participantstimes are UTC
Highlights from this day
  • declared_value — anyone else find the 15mg vials harder to get fully dissolved than the small ones if you cannot read the mark confidently, your volume is too small. redo it at a… 20:53
  • VialBot — Inter-lab diff for lot C-4402: 99% vs 98.1%. Within expected range. 21:09
  • apob_over_ldl — anyone got a photo of what a properly dissolved vial looks like 21:40
  • VialBot — Purity check: no report on file for lot A-2601. Nothing logged either way. 22:28
  • VialBot — Channel stats, last 30 days: 128 messages from 48 members. 22:37
VO

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

VB

On this day 5 years ago this channel logged 80 messages.

DV

genuine question update from 6 months ago: switched to a single concentration and have not miscalculated since

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

anyone else find the 15mg vials harder to get fully dissolved than the small ones
if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration

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

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

write the date on

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

thats 5mg/ml

CH

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

VO

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

VB

Inter-lab diff for lot C-4402: 99% vs 98.1%. Within expected range.

AO

my vial pulled the water in on its own, is that the vacuum or did i do something

the vacuum will pull it in. let it. fighting it is how you get a face full of aerosol

MP

dead space in a standard insulin syringe hub is small but it is not nothing over a month, i could be wrong

⚠️1

read it at eye level

👍8
AO

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

MP

i use bac water even for a single-use vial because it stings less, which is not the reason it exists, for what its worth
temperature of the diluent does not matter. how fast you push it in does

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AO

you can absolutely just always use 2ml, and honestly most of us should

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

too dilute imo

MP

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

it foamed. is it ruined

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CO

unrelated but temperature of the diluent does not matter. how fast you push it in does

what do you do with the last 5 units when you cant draw them cleanly

DV

label the date too. you will not remember which vial is which by week 8, take that with a pinch of salt

check your maths

VB

Purity check: no report on file for lot A-2601. Nothing logged either way.

VB

Channel stats, last 30 days: 128 messages from 48 members.

DV

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

MP

my rule is one concentration for everything so i never have to think about it at 7am