Liver enzymes drifting down and what that usually means posts 61–73

Clear enough that I do not think I have a follow-up, which is unusual.

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.

That is what the documentation says. What happens in practice is usually close.

I had written a reply contradicting post #59 and deleted it. Here is what survived.

A single value outside interval: usually uninformative on a single draw. What makes a result interesting: a trend across multiple draws, a magnitude well beyond the interval, a pattern that coheres with other values, or symptoms that fit.

Confirming post #63 from a second method, which matters more than confirming it from a second person.

What I would check first on liver enzymes drifting is whether the thing being measured moved or whether the way of measuring it moved. Those look identical in a graph.

Answering the question post #63 raises rather than the one it answers.

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.

Practical experience of liver enzymes drifting, offered as one case with the conditions stated, not as a general finding. Conditions first, because they are what make it interpretable.

Post #67 is the version of this I will quote in future. One addition.

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.

Glycaemic markers integrate over different periods. A point glucose and a longer-term marker disagreeing is not a contradiction; it is two different questions.

That is the distinction I keep failing to hold on to. Written down now.

Liver enzyme changes during rapid weight loss are commonly reported and have several possible explanations, which is exactly why they need clinical interpretation rather than forum interpretation.

Marking that as an opinion rather than a finding.

The most useful thing anyone has posted about liver enzymes drifting in this category was a table of what had been measured and by whom. That is what I would want again.

Reading rather than answering, but this is the post I would point somebody at.