three years of reconstitution threads, summarised so you do not have to read them
three years of reconstitution threads, summarised so you do not have to read them. Not a hot take, just something I have not seen said plainly here.
Wrote the date on the vial as well as the concentration after losing track of which one was opened first.
Shook the first vial because nobody told me not to. It was fine, but I have swirled every one since.
The dead space question sent me down a rabbit hole for a week. It is a fraction of a unit and it is the same every draw.
That is everything I have. The rest is opinion and I have tried to keep it out.
best — the order this archive was captured in
Research-use-only material is not approved for human use, so treat everything in this thread as arithmetic about solutions rather than instructions for a person.
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What is written on the vial right now?
Show the arithmetic — where did the unit figure come from?
swirl, never shake
Agreed — units are volume. Once that lands, the rest of the arithmetic is one division.
Corrected the concentration in the title, which contradicted the body. Nothing else touched.
Corrected the concentration in the title, which contradicted the body.
vial_math_vera has the units point exactly right. They are a volume on the barrel and nothing else.
the powder cake sits at the bottom, the volume you add is the volume that counts
Agreed on the swirl. There is no reason to shake it and a good reason not to.
if the maths gives you a fraction of a unit, change the concentration
How many mg in the vial and how many mL are you adding?
label the vial with the date as well as the concentration
bacteriostatic water has the preservative, sterile water does not
Bacteriostatic or plain sterile water?
more water is not more drug, it is the same drug in a bigger volume
Small fix — a U-100 syringe is 100 units per mL. If yours is marked differently it is not U-100 and the whole calculation changes.
- 1if the maths gives you a fraction of a unit, change the concentration7 comments in this branch · started by u/yusuf_achebe
- 2Research-use-only material is not approved for human use, so treat…6 comments in this branch · started by u/viktor_erdogan