#reconstitution 2026-05-08

Friday27 messages6 participantstimes are UTC

Highlights from this day

lyophile_liv — if i add 1ml to a 10mg vial what concentration am i actually at if the maths gives you 13.7 units, change the volume. do not try to hit 13.7 22:38
alt_ast_ali — whats the smallest volume you would trust yourself to measure on a u100 22:43
lyophile_liv — how much do i lose to dead space with a 29G pin if the powder is on the stopper, tap it down before you add anything. it will still dissolve either way 22:46
chlorhex — bac water or sterile water for something im going into weekly for 9 weeks nobody here should be telling you a dose. we can check your arithmetic, thats a different… 23:02
alt_ast_ali — does it matter if i inject the bac water straight at the powder 23:27

not sterile water

if i add 1ml to a 10mg vial what concentration am i actually at
if the maths gives you 13.7 units, change the volume. do not try to hit 13.7

foam is bad

quick one you can absolutely just always use 2ml, and honestly most of us should, ask me again in a month

alt_ast_ali 22:43

whats the smallest volume you would trust yourself to measure on a u100

🙏16📉3❤️12

lyophile_liv 22:46

how much do i lose to dead space with a 29G pin
if the powder is on the stopper, tap it down before you add anything. it will still dissolve either way

is it normal for the cake to look slightly collapsed on one side

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

alt_ast_ali 22:53

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

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

chlorhexmod22:59

weigh it first

bac water or sterile water for something im going into weekly for 9 weeks
nobody here should be telling you a dose. we can check your arithmetic, thats a different thing

salt_bridgelab23:04

is there any reason not to just always use 2ml

lyophile_liv 23:07

label the vial

💀7❤️10🙏7

nope, redo it

20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy, ill dig out the number

salt_bridgelab23:15

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

update from 19 months ago: switched to a single concentration and have not miscalculated since

ms_ms_miralab23:21

for the archive what do you do with the last 30 units when you cant draw them cleanly