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Devices · subcategory

Pens & autoinjectors

Pen mechanics, dose counters, priming, and what happens when a pen is used off its label.

18 topics453 posts6 solved Moderators: t.vasquez, hana.sato About this category

dead volume missed dose storage subcutaneous injection

18 topics

Topic	Participants	Replies	Views	Activity
About the Pens & autoinjectors category dead volume missed dose storage Pinned Wiki Pen mechanics, dose counters, priming, and what happens when a pen is used off its label. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with its…	+1	5	92	5mo
Revisiting: Drawing from a pen cartridge with a syringe: how the risk profile changes dead volume missed dose storage subcutaneous injection Revisiting: Drawing from a pen cartridge with a syringe: how the risk profile changes Writing it up because I had to work it out twice and would rather nobody else did. I have read the maintained page on this…		2	18k	6h
Why a pen's dose steps are fixed and what that costs you dead volume storage subcutaneous injection missed dose Solved The question in the title: Why a pen's dose steps are fixed and what that costs you I will give what I have already checked below so nobody repeats it. I have read the maintained page on this and I still have…		4	2.5k	23h
Priming a pen and whether the primed volume is wasted storage missed dose dead volume Solved Wiki Priming a pen and whether the primed volume is wasted Writing it up because I had to work it out twice and would rather nobody else did. Practical question with the units stated, because I have seen how…	+19	23	1.3k	2d
Coming back to: Pen dose counters: what a click does and does not guarantee storage subcutaneous injection dead volume Pen dose counters: what a click does and does not guarantee — setting out what I have, and where I think it stops being reliable. A question about technique rather than about dose. I have been doing the same…		4	105	5mo
A pen that felt like it delivered nothing: diagnosing it afterwards storage subcutaneous injection missed dose dead volume Solved On the subject in the title: A pen that felt like it delivered nothing: diagnosing it afterwards Working notes rather than a conclusion. A question about technique rather than about dose. I have been doing…	+35	39	584	6mo
Pen mechanics when the cartridge is nearly empty — does this still hold? storage subcutaneous injection missed dose dead volume Asking directly, because I could not find a straight answer: Pen mechanics when the cartridge is nearly empty — does this still hold? Practical question with the units stated, because I have seen how quickly…	+37	47	61k	6mo
Pen dose counters: what a click does and does not guarantee missed dose subcutaneous injection storage Under review On the subject in the title: Pen dose counters: what a click does and does not guarantee Working notes rather than a conclusion. I have read the maintained page on this and I still have a gap, so I am asking…	+116	122	1.6k	8mo
Needle changes between doses on a reusable pen subcutaneous injection dead volume missed dose storage Posting this under the heading it deserves: Needle changes between doses on a reusable pen Everything below is what sits behind that. I have read the maintained page on this and I still have a gap, so I am…	+34	38	1.5k	10mo
Why a pen's dose steps are fixed and what that costs you — one year on storage subcutaneous injection missed dose Solved Closed Asking directly, because I could not find a straight answer: Why a pen's dose steps are fixed and what that costs you — one year on I have read the maintained page on this and I still have a gap, so I am…	+30	34	2.9k	11mo
Second pass at: Pen dose counters: what a click does and does not guarantee dead volume storage subcutaneous injection Second pass at: Pen dose counters: what a click does and does not guarantee — setting out what I have, and where I think it stops being reliable. A question about technique rather than about dose. I have been…	+63	68	51k	13mo
Needle changes between doses on a reusable pen — does this still hold? dead volume missed dose storage Solved Wiki Needle changes between doses on a reusable pen — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. I have read the maintained page on this and I…	+1	5	38k	13mo
Storing a pen in use versus a pen unopened storage missed dose dead volume Storing a pen in use versus a pen unopened Writing it up because I had to work it out twice and would rather nobody else did. Practical question with the units stated, because I have seen how quickly these go…	+14	18	13k	14mo
Storing a pen in use versus a pen unopened — what changed since subcutaneous injection dead volume missed dose Posting this under the heading it deserves: Storing a pen in use versus a pen unopened — what changed since Everything below is what sits behind that. I have read the maintained page on this and I still have…		2	206	15mo
Second pass at: A pen that felt like it delivered nothing: diagnosing it afterwards dead volume storage subcutaneous injection missed dose Second pass at: A pen that felt like it delivered nothing: diagnosing it afterwards — setting out what I have, and where I think it stops being reliable. A question about technique rather than about dose. I…	+9	13	829	18mo
Drawing from a pen cartridge with a syringe: how the risk profile changes subcutaneous injection dead volume missed dose Posting this under the heading it deserves: Drawing from a pen cartridge with a syringe: how the risk profile changes Everything below is what sits behind that. I have read the maintained page on this and I…		2	159	19mo
Priming a pen and whether the primed volume is wasted — one year on missed dose dead volume subcutaneous injection storage Solved Posting this under the heading it deserves: Priming a pen and whether the primed volume is wasted — one year on Everything below is what sits behind that. Practical question with the units stated, because I…	+3	7	5.4k	22mo
Pen mechanics when the cartridge is nearly empty storage subcutaneous injection dead volume Pen mechanics when the cartridge is nearly empty — setting out what I have, and where I think it stops being reliable. A question about technique rather than about dose. I have been doing the same thing for…		2	661	22mo

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