What would change my mind on ten-fold dose error caught is a second dataset collected by someone with no stake in the first. Until then I hold it loosely and I would rather say so than pretend to more.
A ten-fold dose error caught before injection — one year on
Drawing through a wider needle and injecting through a thinner one is a reasonable approach for a viscous preparation and pointless for an aqueous one.
I am reporting what happened, not recommending it.
Needle length for subcutaneous delivery is a question about tissue depth and injection angle together. Short needles at ninety degrees and longer ones at an angle reach comparable depths.
Somebody will have a better source than mine, and I hope they post it.
The thing about ten-fold dose error caught that took me longest to accept is that a plausible mechanism is not evidence of an effect. It is a reason to look, not a result.
Sharps containers are a legal requirement for disposal in several jurisdictions and a sensible precaution everywhere. A rigid sealed container is the minimum.
Post #78 is the version of this I will quote in future. One addition.
Needle length: typical lengths for subcutaneous injection are 4-6 mm (short), 8 mm (standard), or 10-12 mm (longer). Longer needles are needed for deeper tissue or if you have abdominal adiposity.
I would hold that lightly until someone with a larger sample weighs in.
On post #85 — agreed on the reasoning, with one qualification.
I have three months of notes on ten-fold dose error caught and the honest summary is that the trend is real and the week-to-week numbers are noise. I nearly drew the opposite conclusion from the first fortnight.
Everything in post #130 holds. The case it does not cover is the one I have.
Buying a box of the wrong barrel size is the most common regret described in this subcategory, and the reason is nearly always that the dose was decided after the syringes.
Reporting the observation and leaving the explanation open deliberately.
Read the full topic (158 posts)
Suggested topics
| Topic | Participants | Replies | Views | Activity |
|---|---|---|---|---|
|
Reading U-100 graduations, with a conversion table
Posting this under the heading it deserves: Reading U-100 graduations, with a conversion table Everything below is what sits behind that. A question about reading U-100 graduations that I think has a definite…
|
+35 | 41 | 2k | 1d |
|
Follow-up: Dead volume across syringe and needle combinations
Dead volume across syringe and needle combinations — setting out what I have, and where I think it stops being reliable. A follow-up question about Dead volume across syringe that I did not know to ask the…
|
+81 | 98 | 22k | 18mo |
|
About the Syringes & needles category
Insulin syringe graduations, dead volume, gauge and length selection, and reading units correctly. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded…
|
4 | 45k | 1mo | |
|
Fixed versus detachable needles: the trade-offs
Posting this under the heading it deserves: Fixed versus detachable needles: the trade-offs Everything below is what sits behind that. I was wrong about fixed versus detachable needles in a thread last spring…
|
+117 | 121 | 7.3k | 18mo |
|
Gauge and length selection for subcutaneous injection
Gauge and length selection for subcutaneous injection Writing it up because I had to work it out twice and would rather nobody else did. A follow-up question about gauge and length selection that I did not…
|
+50 | 55 | 1.3k | 8mo |
Related topics — sharing the tags dead volume, needle gauge & length, subcutaneous injection
| Topic | Participants | Replies | Views | Activity |
|---|---|---|---|---|
|
A site rotation scheme that is easy enough to actually follow
On the subject in the title: A site rotation scheme that is easy enough to actually follow Working notes rather than a conclusion. Two things I would like separated before anyone answers on site rotation…
|
+112 | 125 | 5.8k | 21h |
|
Second pass at: Choosing a concentration on purpose rather than by accident
Second pass at: Choosing a concentration on purpose rather than by accident Writing it up because I had to work it out twice and would rather nobody else did. Posting a small dataset on Choosing a…
|
+44 | 48 | 1k | 19mo |
|
Dead volume across syringe and needle combinations
On the subject in the title: Dead volume across syringe and needle combinations Working notes rather than a conclusion. Something about dead volume across syringe does not reconcile and I would like a second…
|
+72 | 80 | 28k | 5mo |
|
Coming back to: Swirling versus inverting versus leaving it alone
Swirling versus inverting versus leaving it alone Writing it up because I had to work it out twice and would rather nobody else did. Swirling versus inverting versus leaving — I have the observation and I do…
|
+20 | 24 | 16k | 26d |
|
Feature request: should a dose-equivalence tool exist at all?
Feature request: should a dose-equivalence tool exist at all? — that is the question, and I have not found it answered plainly anywhere I have looked. Reading back through what has been written here about…
|
+21 | 25 | 4.8k | 18mo |