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c/reconstitution·submitted 2 years ago by u/yusuf_nakamura

bacteriostatic water is the most under-discussed thing in c/sideeffects

Explainerbranch of 6 comments

Right, the bacteriostatic water question again, but with numbers this time. I have 2 data points over 18 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…

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6 comments, started 2 years ago
u/rina_bergstrom3 points·2 years ago

This is correct. 2mL versus 5mL is the common mistake.

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u/lurker_for_years1 point·2 years ago

What was the vial size and how much bac water?

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u/runa_grimaldi1 point·2 years ago

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

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u/katrin_marchetti-37 points·2 years ago

Are you using a u-100 or u-40 syringe? That changes everything.

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u/vito_beaulieu1 point·2 years ago

the concentration on the vial in marker is the most important step

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u/cesar_ivaturi1 point·2 years ago

Are you using a u-100 or u-40 syringe? That changes everything.

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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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