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c/reconstitution·submitted 13 days ago by u/aleksi_lehtinen

[Explainer] units are volume, mg are mass, this is the #1 error on this site

Explainerbranch of 7 comments

Right, the units question again, but with numbers this time. I have 12 data points over 24 weeks. The pattern is consistent enough that I do not think it is chance, and boring enough that nobody is going to screenshot it, which is usually a good sign. The thing I would flag for anyone new: the effect I am describing…

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7 comments, started 12 days ago
u/karim_ilunga37 points·12 days ago

Yeah, showing the arithmetic is the fastest way for someone to spot the error.

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u/aleksi_lehtinenOP43 points·12 days ago

That is net peptide content, not purity. Different number, different meaning.

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u/gradient_goblin33 points·12 days ago

dosing errors come from people reconstituting two vials differently and forgetting which is which

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u/aleksi_lehtinenOP25 points·12 days ago

Cored the stopper on my 2th draw because I kept using the same entry point. Rotate the puncture site.

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u/aleksi_lehtinenOP0 points·12 days ago

bacteriostatic and sterile water are not interchangeable, do not use them that way

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[removed]10 points·11 days ago

[removed by moderator]

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u/dilara_szabo15 points·12 days ago

Cored the stopper on my 21th draw because I kept using the same entry point. Rotate the puncture site.

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About c/reconstitution

The arithmetic and the technique. Bacteriostatic versus sterile water, reconstitution volume as a concentration choice, converting mg/mL into insulin-syringe units, dead space, swirl-not-shake, stopper coring, and how long a reconstituted vial is actually good for. Math errors get corrected fast and politely.

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