Writing this once so I can stop repeating it across threads. It is about cross-border ordering, and it is deliberately narrow — everything I am not confident about is marked as such.
What is actually established
The variables that decide how a cross-border order goes are declaration wording, the destination country's import rules for prescription medicines, and whether the shipment looks commercial. Personal-import allowances exist in some jurisdictions and not in others, and where they exist they are usually conditional on a prescription and a quantity limit. The failure mode is normally a seizure notice rather than anything worse, and a reshipment policy is the thing worth confirming before ordering rather than after.
The condition it depends on
Cold chain is the underrated risk on long routes. A shipment held at a border for a week has had a temperature excursion whether or not it arrives.
What I am not sure about
The question I want answered is which of the variables in a cross-border order actually determine the outcome, and which are superstition. Numbers rather than impressions, if you have them.
DataDave said:The variables that decide how a cross-border order goes are declaration wording, the destination country's import rules for prescription medicines,…
Agreed, with the caveat that HbA1c is unreliable in anaemia, haemoglobinopathies and recent blood loss, all of which are commoner than people assume. If it disagrees with fasting glucose or a CGM, that is worth chasing.
DataDave said:The variables that decide how a cross-border order goes are declaration wording, the destination country's import rules for prescription medicines,…
Filing a mild objection. Mild because I might be wrong; an objection because nobody has addressed the case that does not fit. Import rules are jurisdiction-specific and this board keeps giving US-shaped answers to non-US questions. What is a personal-import allowance in one country is a controlled-import offence in another.
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Shop Reference StandardsShort answer first, then the reasoning. HbA1c reflects roughly three months of average glycaemia weighted toward the most recent weeks, which is why repeating it at six weeks tells you very little. The improvement on this class comes from two directions — direct glucose-dependent insulin secretion and glucagon suppression, plus the indirect effect of weight loss on insulin sensitivity — and the second continues after the first has plateaued.
LabKate said:Agreed, with the caveat that HbA1c is unreliable in anaemia, haemoglobinopathies and recent blood loss, all of which are commoner than people assume.
This matches mine closely enough to be worth saying so out loud. Posting only so the count is not one.