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c/coldchain·submitted 1 months ago by u/chidi_yilmaz

my A1c moved and I cannot work out whether ice pack is why

Failurebranch of 7 comments

Quick one. Canada here. data logger works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given advice that simply does not apply outside the US. Specifics: the route I used took 16 weeks and cost roughly what I expected. The admin was worse than…

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7 comments, started 1 months ago
u/source_or_silence148 points·1 months ago

Inter-lab variance on this kind of assay is routinely 1–2 points. Different column, different gradient, different integration.

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u/niels_yilmaz73 points·1 months ago

Peak temperature and how long at that temperature?

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u/bence_ibarra57 points·1 months ago·edited

lyophilised powder is far more forgiving than reconstituted solution

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[deleted]25 points·1 months ago

[deleted]

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u/low_appetite_lisa67 points·1 months ago

The gel pack lasted 13 hours in a courier van, then liquid. Powder itself fine, the cold chain mostly died in transit.

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u/milos_vestergaard21 points·1 months ago·edited

time-at-temperature integral is the dose, not just peak temperature

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Temperature and stability in the real world: what an excursion actually costs you, why lyophilised powder is far more forgiving than reconstituted solution, how to read a logger CSV, and how to photograph a failed shipment so the conversation with the vendor is short.

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