ferritin — 15 things I got wrong before I got it right
ferritin — 15 things I got wrong before I got it right. It is the sort of thing everyone half-believes and nobody writes down. ApoB counts atherogenic particles rather than the cholesterol they carry, which is why it can diverge from LDL-C and why it is the addition most worth making. Time of day, fasting state,…
That comparison crosses two labs with different assays. The difference you are describing may be the method.
Agreed on assay changes. A lab switching platforms between your draws is invisible unless you ask.
Same view — ApoB if you add one thing. It answers a question the standard panel only gestures at.
Careful — that is a question for whoever ordered the panel, and nobody in this thread can answer it responsibly.
Careful — that is a question for whoever ordered the panel, and nobody in this thread can answer it responsibly.
Disagreeing with this bit: that change is confounded by the weight loss itself and cannot be attributed.
Correcting my own comment: the two draws were 8 weeks apart, not the figure I gave earlier.
Same lab as the previous draw?
Compared two draws across two labs and spent a week worrying before finding out the assays were different.
Fasting or not, and what time of day?
Small fix — a reference interval is not a treatment target, and the post above uses them interchangeably.
Reference intervals are typically the central 95% of a reference population. By construction one person in twenty falls outside one on any given test without anything being wrong.