whats the smallest volume you would trust yourself to measure on a u100
#reconstitution 2025-09-28
Sunday43 messages9 participantstimes are UTC
Highlights from this day
- orfor_watch — update on the earlier thing it should be completely clear with no floaters. cloudy means stop 19:51
- lot_number_lou — is there any reason not to just always use 2ml 20:00
- food_noise_off — if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space 20:52
- fibre_first — slightly off topic but swirl it. do not shake it. the foam is denatured protein and you are not getting it back 22:10
update on the earlier thing it should be completely clear with no floaters. cloudy means stop
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anyone got a photo of what a properly dissolved vial looks like
[edited]you can absolutely just always use 2ml, and honestly most of us should
[edited]is there any reason not to just always use 2ml
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aim the diluent at the glass wall, not at the powder. it goes in gentler
round numbers
30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right
how much do i lose to dead space with a 31G pin
is the meniscus reading actually a real source of error or am i overthinking
thats 5mg/ml
read it at eye level
weigh it first
bac water
the powder is stuck to the stopper, do i care
im getting bubbles in the barrel every single time, what am i doing wrong
is it worth buying a 3ml syringe for the diluent or is the insulin one fine
*VendorInvestigate not the other one
do not add more bac water to an already reconstituted vial, you have lost track of the concentration, ask me again in a month
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one unit is 0.01ml. 100 units is 1ml. everything else in this channel follows from that
if i add 5ml to a 40mg vial what concentration am i actually at
does temperature of the bac water matter at all
food_noise_offdo not add more bac water to an already reconstituted vial, you have lost track of the…
quick one 5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose
clear or bin it
too dilute imo
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if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space
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a slightly collapsed cake is cosmetic. a puddle in the bottom is not
what do you do with the last 12 units when you cant draw them cleanly
the meniscus thing is real. read it at eye level or you are guessing by a unit either way
right so label the date too. you will not remember which vial is which by week 6
thats the vacuum
anyone worked out a recon volume that puts 0.25mg on a round unit mark
is a slightly cloudy solution ever ok or is that always a bin it
nope, redo it
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/mlcoming back to this coming back after 14 months, has the pinned recon volume advice changed
10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100
a 3ml syringe for the diluent and a u100 for the dose is the setup most people here end up with
thats fine
i write the mg/ml on the vial with a sharpie the moment i reconstitute it
10mg in 1ml is 10mg/ml, so 2.5mg is 25 units. thats the one i use
slightly off topic but swirl it. do not shake it. the foam is denatured protein and you are not getting it back
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while im here can i add more bac water later to a vial ive already reconstituted