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c/reconstitution·submitted 5 days ago by u/sock_puppet_spotter

[Question] does needle dead space actually matter at 2.5mg doses

Questionbranch of 9 comments

Question in the title, detail here: does needle dead space actually matter at 2.5mg doses. Numbers, in the order they matter: 2.5mg. I keep a laminated card in the drawer with the arithmetic on it. Looks ridiculous. Has never once let me draw the wrong volume. Spent 22 weeks confused about this until somebody drew…

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9 comments, started 4 days ago
u/units_not_mgMOD43 points·4 days ago

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

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u/oskar_kaufmann34 points·4 days ago·edited

Bacteriostatic or plain sterile water?

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u/saskia_mwangi17 points·4 days ago

the powder cake sits at the bottom, the volume you add is the volume that counts

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u/niels_roos14 points·4 days ago·edited

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.

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[deleted]10 points·4 days ago

[deleted]

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u/gradient_goblin9 points·4 days ago

Agreed on the swirl. There is no reason to shake it and a good reason not to.

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u/quiet_reader_9921 points·4 days ago·edited

Is that a U-100 syringe? The barrel markings change the answer completely.

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u/georgi_adebayo13 points·3 days ago

reconstituting at a round concentration makes every later dose easy

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u/lyophile_lou27 points·4 days ago

Show the arithmetic — where did the unit figure come from?

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