give it 9 minutes at room temperature before you decide it has not dissolved
#reconstitution 2025-04-29
Tuesday43 messages8 participantstimes are UTC
Highlights from this day
- vacuum_vic — is there any reason not to just always use 2ml do not add more bac water to an already reconstituted vial, you have lost track of the concentration 09:52
- truncation_tru — update from 21 months ago: switched to a single concentration and have not miscalculated since 11:37
- triple_ag_tom — whats the smallest volume you would trust yourself to measure on a u100 14:01
- VialBot — Archive lookup: power_cut_pia first appears in this channel on 2024-06-25. 14:16
- vacuum_vic — if the powder is on the stopper, tap it down before you add anything. it will still dissolve either way 15:53
a 3ml syringe for the diluent and a u100 for the dose is the setup most people here end up with
pick the volume so your dose is a whole number of units. thats the entire trick
is there any reason not to just always use 2ml
do not add more bac water to an already reconstituted vial, you have lost track of the concentration
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a slightly collapsed cake is cosmetic. a puddle in the bottom is not
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20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy
quick one why does everyone say 2ml specifically and not 1ml
Batch lookup A-2418: 9 independent reports on file, earliest 2024-08-03.
for the archive the meniscus thing is real. read it at eye level or you are guessing by a unit either way
the powder is stuck to the stopper, do i care
clear or bin it
too dilute imo
i swirl for about thirty seconds and then leave it. never had one fail to dissolve
temperature of the diluent does not matter. how fast you push it in does
update from 21 months ago: switched to a single concentration and have not miscalculated since
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check your maths
bacteriostatic water for anything multi-use. sterile water has no preservative in it at all
write the date on
it should be completely clear with no floaters. cloudy means stop
i keep a spare vial of bac water in the fridge purely so i never rush the maths
does temperature of the bac water matter at all
if i add 0.5ml to a 40mg vial what concentration am i actually at
[edited]label the vial
weigh it first
thats fine
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dead space
right so anyone worked out a recon volume that puts 10mg on a round unit mark
genuine question is it normal for the cake to look slightly collapsed on one side
nope, redo it
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how much do i lose to dead space with a 30G pin
[edited]read it at eye level
not sterile water
thats the vacuum
15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it
do not add more bac water to an already reconstituted vial, you have lost track of the concentration
the jewellery scale is a good habit but calibrate it, they drift badly, your mileage will differ
whats the smallest volume you would trust yourself to measure on a u100
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sanity check my maths before i pin myself with something stupid
10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100
Archive lookup: power_cut_pia first appears in this channel on 2024-06-25.
do not add more bac water to an already reconstituted vial, you have lost track of the concentration, thats just me
if the powder is on the stopper, tap it down before you add anything. it will still dissolve either way
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i was wrong about this last year: it is fine to draw cold, it just stings more going in
right so 5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose, someone check my working