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Single comment threadYou are looking at one branch of genuine question about reconstitution that I am slightly embarrassed to ask — 42 comments in the full submission. View in context.
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c/reconstitution·submitted 2 years ago by u/aleksi_lehtinen

genuine question about reconstitution that I am slightly embarrassed to ask

Mathbranch of 6 comments

genuine question about reconstitution that I am slightly embarrassed to ask — that is what I am asking, and I have already read the wiki twice. The failure modes I have actually seen posted here, in order of frequency. One: reconstituting at a different volume than intended and not writing it down, so the next draw…

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6 comments, started 2 years ago
u/reflux_report10 points·2 years ago

Asked SWB what volume they reconstitute to for their own stability testing and they answered in one line. Useful thing to know.

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u/vial_math_veraMOD4 points·2 years ago

Reminder: this board does maths, not dosing. Nobody here tells another member what amount to take.

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u/viktor_kirchner2 points·2 years ago

Reminder: this board does maths, not dosing.

Disagreeing with this line only: adding more water is not a safety margin, it is a different divisor.

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u/rosa_mensah2 points·2 years ago

reconstituting at a round concentration makes every later dose easy

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u/anya_antonsen1 point·2 years ago

Agreed — units are volume. Once that lands, the rest of the arithmetic is one division.

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u/adaeze_cabrera1 point·2 years ago

That only works if the fill weight is exactly the label weight, and it usually is not exactly anything.

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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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