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

[Discussion] can we stop arguing about units until somebody posts a number

Discussionbranch of 7 comments

Trying to settle this properly because the thread from last year went in circles. The claim: mg/mL matters. The counter-claim: it is measurement error. Both sides have been asserting it confidently for about 7 months without either producing anything. What would actually settle it is 7 people measuring the same thing…

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7 comments, started 2 years ago
u/sleep_apnea_sam168 points·2 years ago
it is in the wiki actually
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u/britta_nakamura92 points·2 years ago

Cosigning. The concentration on the vial in marker is load-bearing.

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u/ines_lindqvist34 points·2 years ago

stopper coring on the 14th draw because you keep using the same entry point. rotate.

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u/elodie_grimaldi58 points·2 years ago

30mg vial, 2mL water, concentration is 30/2 — write it on the vial afterwards

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u/sofia_danquah36 points·2 years ago

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

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u/janek_ferrari79 points·2 years 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/gradient_goblinOP63 points·2 years ago·edited

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

Yes, exactly this, and it is the bit that took me 47 weeks to accept.

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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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