Holding the pen in place for the stated count after the plunger stops is the manufacturer's answer to leakage at the site. It is on the instruction leaflet and it is the step most often skipped.
That is what I would do. It may not be what is correct.
I read post #5 twice before replying, because I had assumed the opposite.
A pen that will not dial to the intended dose is usually telling you the cartridge does not contain enough for it. That is a designed behaviour rather than a fault.
Sensible. I would want the same detail before I acted on it either.
Disposal of a used pen is a sharps question even where the needle is retracted, and local rules vary more than people expect.
That holds for the case as described. Change the assumptions and it may not.
Read the full topic (19 posts)
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Needle changes between doses on a reusable pen
Posting this under the heading it deserves: Needle changes between doses on a reusable pen Everything below is what sits behind that. The question about needle changes between doses that I actually want…
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+34 | 38 | 1.5k | 10mo |
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Drawing from a pen cartridge with a syringe: how the risk profile changes
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. Question about a metering device rather than…
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2 | 159 | 19mo | |
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Coming back to: Pen dose counters: what a click does and does not guarantee
Pen dose counters: what a click does and does not guarantee — setting out what I have, and where I think it stops being reliable. Reading back through what has been written here about Pen dose counters, three…
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4 | 105 | 5mo | |
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Priming a pen and whether the primed volume is wasted — one year on
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. I would like to disagree carefully with the settled…
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+3 | 7 | 5.4k | 22mo |
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Storing a pen in use versus a pen unopened — what changed since
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. What changes if the standard account of Storing a pen is…
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2 | 206 | 15mo |
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A partial dose because the pen emptied mid-injection
A partial dose because the pen emptied mid-injection Writing it up because I had to work it out twice and would rather nobody else did. A methods question rather than a substantive one, about partial dose…
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+108 | 120 | 1.5k | 7mo |
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Titrating on tolerability rather than on the calendar
On the subject in the title: Titrating on tolerability rather than on the calendar Working notes rather than a conclusion. An honest uncertainty about titrating on tolerability rather than a disguised…
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2 | 31k | 13mo | |
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Second pass at: Adsorptive losses at low concentration, and why dilute solutions are fragile
On the subject in the title: Second pass at: Adsorptive losses at low concentration, and why dilute solutions are fragile Working notes rather than a conclusion. The question about Adsorptive losses that I…
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+77 | 87 | 58k | 4mo |
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Coming back to: Adsorption to container surfaces and to plastics
Adsorption to container surfaces and to plastics — setting out what I have, and where I think it stops being reliable. Adsorption — I have the observation and I do not trust my interpretation of it, so I am…
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2 | 459 | 17mo | |
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Second pass at: A reconstituted vial's beyond-use date and the reasoning behind common figures
Second pass at: A reconstituted vial's beyond-use date and the reasoning behind common figures Writing it up because I had to work it out twice and would rather nobody else did. Something changed and I would…
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+4 | 8 | 20k | 8mo |