#reconstitution 2025-04-01

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

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

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

clear or bin it

sanity check my maths before i pin myself with something stupid

i use bac water even for a single-use vial because it stings less, which is not the reason it exists

how much do i lose to dead space with a 29G pin
gross powder mass is not net peptide. water and counterion are in that number

if i add 0.5ml to a 15mg vial what concentration am i actually at

why does everyone say 2ml specifically and not 1ml

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

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

while im here lyophilised powder is far more robust than people think. it is the solution that is fragile

pick the volume so your dose is a whole number of units. thats the entire trick, i have it written down somewhere

does temperature of the bac water matter at all

does it matter if i inject the bac water straight at the powder

ok so the last few units are a real loss. i accept it rather than tilting the vial and drawing air

if the maths gives you 13.7 units, change the volume. do not try to hit 13.7

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

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