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ForumsCOA & Analytical TestingHow to read a Certificate of Analysis — complete guide Page 12

How to read a Certificate of Analysis — complete guide

COA_Karl Mon, Feb 26, 2024 at 4:00 PM 245 replies 11,691 viewsPage 12 of 20
anna.melb_AU
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Mar 19, 2024 at 9:45 AM#56

Clinical perspective, offered as context rather than as advice. Start from the measurement rather than the conclusion. Almost every disagreement here turns out to be two people measuring different things and comparing the numbers anyway.

I would rather be corrected than agreed with, if it comes to it.

14 12DerekSJ_a1c, paige_pharma, emma_london and 11 others
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gary_naperville
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Mar 19, 2024 at 9:18 PM#57
anna.melb_AU said:
Start from the measurement rather than the conclusion.

Adding a me-too, because a thread of one person's experience is not much use.

15 13DoseLogDan, SleepFixSam, PurityPaulOR and 12 others
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JessicaH_TX
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Mar 20, 2024 at 8:50 AM#58
anna.melb_AU said:
Start from the measurement rather than the conclusion.

There is a second half to this that has not been said yet. It helps to ask what evidence would change your mind before you look at any. If nothing would, the discussion is not about evidence, and it is better to say so early than to spend nine posts discovering it.

That is the short version; the long version is somebody else's post.

16 14kim_atl_prep, sarah_TO, wendy_avl and 13 others
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Sigma-Aldrich — Research-Grade Standards

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stefan_berlin
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Oct 2024
Berlin, DE
Mar 20, 2024 at 8:22 PM#59

Adding the numbers, since they settle part of this. Worth stating the units and the reference range whenever you post a number here. A large fraction of the apparent disagreement in these threads is two people using different units and both being right.

Last edited: Mar 20, 2024 at 11:22 PM
17 15TirzTom, TrialTracker_MD, JennaRN and 14 others
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MariaRD
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Jun 2024
New Mexico
Mar 21, 2024 at 7:54 AM#60

A narrower follow-up, since the general answer is now clear:

Did your prescriber agree with that reading, and if not what was their objection?

39 12nancy_portland, rick_sfbay, maria_elpaso and 36 others
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