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Clinical › Bloodwork HbA1c lipid panel eGFR & renal function

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dr_okonkwoTL4 Moderator15 Dec 2025#1

Community wiki post. Any member at trust level 3 or above can edit this post; every edit is recorded. Last edited by hana.sato on 12 Mar 2026.

21 Feb 2026 — dr_okonkwo: Clarified the distinction that was causing repeat questions below.
21 Mar 2026 — mira.patel: Added the worked example and a unit label to the table header.
12 Mar 2026 — hana.sato: Replaced an unsourced figure with the published one and cited it.

Editors: dr_okonkwo, mira.patel, hana.sato

Staff post. Actions described here are recorded in the public moderation log and may be challenged in Meta.

Panels, reference intervals, biological variation, and resisting the urge to over-read one result.

This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with its author and a note. If the scope described here has drifted from what actually gets posted, edit it rather than starting a topic about it.

What belongs here

Questions specific to bloodwork, with the units and the context stated.
Reports and datasets, with the collection method stated.
Disagreement about the substance, conducted in public.

What belongs elsewhere

Anything urgent belongs in Safety, immediately, and not here.
Anything about how this site works belongs in Meta.
Requests for a maintained page belong in Wiki requests.

Before posting, it is worth checking the documentation commons and this category's tag pages. A great deal of what gets asked here has a maintained answer with a review date on it, which is more reliable than a two-year-old reply.

7 likes 7mo

KLindqvistTL4 Moderator8 Jan 2026#2

Staff post. Actions described here are recorded in the public moderation log and may be challenged in Meta.

Moderation notes for this category, so that nothing about how it is run is a surprise.

Topics get moved into and out of here regularly. A move is not a judgement — the category tree is not obvious from outside and putting a question in the wrong place is expected. When I move something I say so in the topic and the action appears in the public log with the guideline cited.

The two guidelines that come up most often in this category are R2, on supplying a source when asked, and R7, on category placement. Neither is used punitively.

0 likes 7mo

BuchholzTL2Member26 Jan 2026#3

As a member rather than staff: the most useful thing I did when I started reading this category was to work through the tag pages rather than the topic list. The topic list shows you what is recent. The tags show you what is settled.

32 likes 6mo

f.laurentTL2 Moderator10 Feb 2026#4

Suggestion for the wiki post above: it would be worth linking the two or three most-referenced topics in this category directly, since new members reliably ask for exactly those. Happy to make the edit myself if nobody objects, with a revision note.

17 likes 6mo

c.rasmussenTL2 Moderator25 Feb 2026#5

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.

6 likes 5mo

e.lokkenTL2 Moderator11 Mar 2026 · edited#6

This follows post #3 rather than contradicting it.

Renal function markers: eGFR is estimated, not measured. It depends on creatinine, age, and weight. A small change in creatinine might not mean a real change in kidney function.

1 like 5mo

a.friskTL2 Moderator24 Mar 2026#7

dr_okonkwo, post #1: Panels, reference intervals, biological variation, and resisting the urge to over-read one result. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with its author and a note. If the scope described here has drifted from what actually gets posted, edit it rather than starting a… Go to post

Worth separating two things that post #3 runs together.

Liver enzymes: elevation does not specify cause. ALT and AST can rise from many things. Bilirubin helps narrow down the cause. Multiple markers together are more informative than one alone.

0 likes in reply to #1 4mo

t.ndiayeTL2 Moderator5 Apr 2026#8

TSH and free hormones: TSH is a reasonable screening test but does not tell you about actual free hormone levels. If TSH is abnormal, free thyroid hormones confirm whether there is a real thyroid problem.

23 likes 4mo

t.demirTL2 Moderator18 Apr 2026#9

Coming back to post #7, because the follow-up matters more than the original answer.

Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing.

The correction was fair and I had been repeating something I had not checked carefully enough.

0 likes 3mo

This topic was referenced in

HbA1c lag and what it can and cannot tell you at eight weeksClinical › Bloodwork · 18 replies
eGFR fluctuation and the creatinine denominator problem — the long versionClinical › Bloodwork · 47 replies

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