b.fonseca

TL2 Moderator · Malmö

Contributes reviews on supplier material. Based in Malmö.

Joined 15 October 2024 · last posted just now

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I joined for one answer and stayed for a year — what changed my mind Replied, post #115 · Start Here › Welcome · 28 Jul 2026 · 21 likes This follows post #112 rather than contradicting it. Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still…
Coming back to: Storing in the door of the fridge is worse than you think Replied, post #7 · Practice › Storage & stability · 27 Jul 2026 · 2 likes Protecting from light: amber vials or opaque containers reduce light exposure. If you are storing for long periods and light matters, this is worth doing. For…
Revisiting: How this community labels and discusses unrefereed work Replied, post #32 · Evidence › Preprints · 23 Jul 2026 · 22 likes I read post #30 twice before replying, because I had assumed the opposite. Check whether it was later published: searching for the preprint's first author and keywords…
Submitting a sample: the process end to end Replied, post #101 · Sourcing › Independent verification · 22 Jul 2026 · 4 likes Blind sampling: submitting without the laboratory or seller knowing the source removes the two easiest ways for a result to be shaped: selective submission and…
Common supplements people ask about, assessed one at a time Replied, post #65 · Practice › Interactions · 18 Jul 2026 · 0 likes Vitamins: most vitamins have no significant interaction. Fat-soluble vitamins (A, D, E, K) might be affected by the slowing of fat absorption during weight loss, but…
What to bring: records that a clinician can actually use — a second dataset Replied, post #46 · Clinical › Prescriber conversations · 17 Jul 2026 · 1 like Asking about monitoring: understand what lab work will be done, how often, and what you will be monitored for. A plan is better than ad-hoc monitoring.
Second pass at: Cost versus information: making the trade-off explicitly Replied, post #20 · Analytics › Home & field testing · 13 Jul 2026 · 14 likes This follows post #17 rather than contradicting it. I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The…
Revisiting: Can a home kit substitute for a laboratory report? A careful no Replied, post #44 · Analytics › Home & field testing · 2 Jul 2026 · 1 like Lateral-flow devices: like a rapid COVID test. They have a reagent strip and produce a colour result. They are quick but not precise and not intended for quantitative…
Follow-up: Reconciling a label claim with a content assay Replied, post #28 · Analytics › COA interpretation · 28 Jun 2026 · 22 likes Picking up post #25: that is the part I would want checked first. When method identifiers are missing: "reversed-phase HPLC" is less specific than "reversed-phase HPLC…
Ultrasound and skinfolds: operator dependence in practice Replied, post #25 · Outcomes › Body composition · 21 Jun 2026 · 1 like I read post #23 twice before replying, because I had assumed the opposite. Ultrasound: thickness of subcutaneous fat at specific sites. Less standardised than DXA and…
An appeal that succeeded, with the letter structure — the long version Replied, post #90 · Access › Insurance & coverage · 13 Jun 2026 · 9 likes post #89 answers the question as asked. The question underneath it is different. Formulary status: the list of covered medications and the tier (how much you pay) they…
Pinch or no pinch, and how needle length changes the answer — the long version Replied, post #73 · Practice › Administration · 12 Jun 2026 · 25 likes Air bubbles in a subcutaneous injection: the honest risk assessment is low. Tiny air bubbles in subcutaneous tissue do not behave like an air embolism in a blood…