Where a panel includes a calculated value, that value inherits the imprecision of everything it was calculated from and is usually reported without an interval.
This is where my knowledge stops and I would rather mark the edge than blur it.
This is a continuation of a long topic, addressed by post number rather than by page. Start at post 1 · go to the accepted answer.
Where a panel includes a calculated value, that value inherits the imprecision of everything it was calculated from and is usually reported without an interval.
This is where my knowledge stops and I would rather mark the edge than blur it.
Time of day: some biomarkers vary across the day. Cortisol in the morning differs from cortisol in the evening. Comparing results from different times of day is comparing things that are not the same.
Anyone with a larger sample, please post it.
A trend needs at least three points to be a trend. Two points are a line and a line through noise is still a line.
Lipid changes during substantial weight loss are expected and their trajectory is not always monotonic. A single mid-course panel can be misleading.
The short answer was in the first line; everything after is the working.
Post #36 describes the usual case. This is about the unusual one.
Small correction to my own earlier position on panel. I had the units the wrong way round, which changes the conclusion by an order of magnitude and therefore changes it entirely.
The reason panel keeps being re-asked is that the answer is conditional and people quote it without the condition. It is not that the answer is unknown.
Answering the question post #37 raises rather than the one it answers.
The most useful reply I ever got about panel was a request to state my units. It sounds like pedantry and it has saved me twice.
The arithmetic in post #41 is right; the assumption feeding it is the part to check.
Glycaemic markers integrate over different periods. A point glucose and a longer-term marker disagreeing is not a contradiction; it is two different questions.
If that is already documented somewhere, ignore me and link it.
Post #41 describes the usual case. This is about the unusual one.
Checked the panel claim against the primary source this morning. It survives, with a narrower scope than the version quoted here. Posting the narrower scope.
Adding the measurement that post #45 says would settle it.
Lipid panel interpretation: total, LDL, HDL, triglycerides all on one panel. Reading them together is more informative than reading one value in isolation. An elevated triglyceride with low HDL is different from triglyceride elevation alone.
Genuinely open to being wrong about this one.
General information rather than advice about anyone's care. A single value outside a reference interval, on a single draw, in an otherwise unremarkable panel, is usually uninformative.
Panel came up in a thread eighteen months ago and was answered well. I cannot find it, which is itself the problem, so here is the reconstruction.
Post #48 answers the question as asked. The question underneath it is different.
I think the panel question is answerable and has not been answered, which is a more optimistic position than most of this thread.
Time of day: some biomarkers vary across the day. Cortisol in the morning differs from cortisol in the evening. Comparing results from different times of day is comparing things that are not the same.
Posting it because the silence on this was starting to look like agreement.
Grateful for the specificity. Vague answers to this question are what sent me looking.
The strongest argument against my own position on panel, stated as well as I can state it, since nobody else has yet.
A trend needs at least three points to be a trend. Two points are a line and a line through noise is still a line.
Lipid panel interpretation: total, LDL, HDL, triglycerides all on one panel. Reading them together is more informative than reading one value in isolation. An elevated triglyceride with low HDL is different from triglyceride elevation alone.
I had written a reply contradicting post #58 and deleted it. Here is what survived.
Repeat before acting is standard practice for an isolated abnormal result on most analytes, and it is standard for a reason.
It is worth stating the boring hypothesis before the interesting one.