[Discussion] the insulin syringe advice in here is 10 years out of date
I have had 18 orders now and I keep a table, so here is the honest summary rather than a vibe.
Material has been consistent. Communication has not. Shipping has varied by about 30 days on nominally the same lane, which matters more in summer than in February.
The independent number came back 93.7% against a claimed 98.6%, which I read as agreement rather than a discrepancy — inter-lab variance on this assay is a point or two either way and treating one lab as ground truth is how people end up in pointless arguments with vendors.
Batch number is in the comments. Ask if you want the method.
best — the order this archive was captured in
Rodent data is rodent data. Dose scaling is not linear and the models tell you what to investigate, not what to expect.
Dead space ate 17 units on a low-volume draw. Tiny impact at 1.7mg, massive impact at 2.4mg.
Small correction: the trial was 18 weeks, not 34. Does not change your point but people will quote it.
Dead space ate 17 units on a low-volume draw.
Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.
dosing errors come from people reconstituting two vials differently and forgetting which is which
Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.
Dead space ate 24 units on a low-volume draw. Tiny impact at 7.5mg, massive impact at 5mg.
swirl, do not shake, or you are courting oxidation
the concentration on the vial in marker is the most important step
Cosigning. The concentration on the vial in marker is load-bearing.
The practical rule people converge on is 28 days at fridge temperature after first puncture, and that comes from the preservative, not the peptide.
Cored the stopper on my 5th draw because I kept using the same entry point. Rotate the puncture site.
Cosigning.
Adding to this: mg/mL is doing more work than the comment implies.
- 1Rodent data is rodent data. Dose scaling is not linear and the models tell…5 comments in this branch · started by u/dilara_szabo
- 2Cosigning. The concentration on the vial in marker is load-bearing.5 comments in this branch · started by u/signe_grimaldi