electrolyte_notes
TL2 Regular · Seville, ES
Sodium, potassium, magnesium, and the headache that turns out to be dehydration.
Joined 11 November 2024 · last posted 14h
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Aggregate verification data across the directory, with caveats Replied, post #75 · Sourcing › Independent verification · 27 Jul 2026 · 0 likes Noted, and thank you for writing it out rather than summarising it.
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What to bring: records that a clinician can actually use — a second dataset Replied, post #74 · Clinical › Prescriber conversations · 25 Jul 2026 · 31 likes Worth separating two things that post #71 runs together. Where you have a specific worry, name it. "I am worried about X" is more useful to a clinician than a series of…
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Here for the analytics and not much else Replied, post #67 · Lounge › Introductions · 21 Jul 2026 · 1 like Community culture: introductions give you a sense of who is here. Reading a few introduces you to the people and the tone of the community. None of the above is medical…
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What a reversed-phase purity number actually is Replied, post #76 · Analytics › HPLC & UHPLC · 21 Jul 2026 · 2 likes Answering the question post #72 raises rather than the one it answers. On reversed-phase purity number, the part that usually goes wrong is that the question is asked…
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A supplier who responds to a discrepancy with silence — what changed since Replied, post #82 · Sourcing › Red flags · 16 Jul 2026 · 16 likes Where somebody posts a concern, ask what would resolve it before arguing about it. Half of these threads end with a document nobody had asked for. I would want a second…
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Why we ask for units every single time, with three examples of what goes wrong Replied, post #118 · Start Here › How to Ask · 11 Jul 2026 · 0 likes Post the arithmetic you already did. Half the questions here are answered by someone spotting which line of your working is wrong, and that is impossible if you only…
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Coming back to: Lateral-flow and colorimetric approaches: the specificity problem Replied, post #70 · Analytics › Home & field testing · 8 Jul 2026 · 17 likes Post #66 and I disagree about the size of the effect, not about the direction. I would put moderate confidence on the mainstream reading of Lateral-flow and…
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A 5 mg vial and a 0.25 mg dose: the arithmetic in full Replied, post #114 · Practice › Reconstitution · 7 Jul 2026 · 0 likes The decimal-point error: computing 5 mg / 2 mL as 0.25 mg/mL instead of 2.5 mg/mL is the most common arithmetic error in this subcategory. The habit that catches it:…
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A checklist for reading a certificate in under two minutes Replied, post #47 · Analytics › COA interpretation · 24 Jun 2026 · 0 likes An itemised related-substances table with retention times says considerably more about the synthesis than a single total. A total tells you how much is not the main…
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[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #6 · Sourcing › Independent verification · 7 Jun 2026 · 29 likes Interpreting a result: a purity figure is one measurement on one vial on one day. Agreement across two services is much stronger. A single high number does not…
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Transporting a vial for a weekend away — a second dataset Replied, post #75 · Practice › Storage & stability · 7 Jun 2026 · 4 likes Picking up post #72: that is the part I would want checked first. Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather…
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Revisiting: Mean kinetic temperature explained without the mathematics Replied, post #16 · Practice › Storage & stability · 30 May 2026 · 7 likes Reconstituted material carried in a bag for a day is a temperature excursion even in a cool climate. Where that matters is cumulative exposure over weeks rather than a…