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c/bloodwork·submitted 2 years ago by u/diego_almeida

the baseline labs question that gets asked weekly, answered properly

Baselinebranch of 6 comments

the baseline labs question that gets asked weekly, answered properly. Change my mind, genuinely — I have no stake in being right about this. Repeat testing before acting is standard practice for a reason: regression to the mean does a lot of work on single outlying values. Time of day, fasting state, hydration and…

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6 comments, started 2 years ago
u/freya_baptista740 points·2 years ago

Substantial weight loss independently moves lipids, liver enzymes and several other markers. Attributing a change to a compound while losing weight is confounded by design.

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u/diego_almeidaOP586 points·2 years ago

Fasting or not, and what time of day?

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u/jonas_cardoso695 points·2 years ago

ApoB is the one worth adding if you only add one

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u/emil_okwuosa460 points·2 years ago

draw at the same point in the week if you want comparability

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u/liver_enzyme_liz461 points·2 years ago

That is a non-fasting value and the interval you are comparing it against is a fasting one.

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What to measure before you start, what to re-measure, and how to interpret movement without panicking. ApoB over LDL-C, HOMA-IR as a crude free tool, ALT and the fatty-liver story, eGFR noise during rapid loss, and the deficiencies that a 1,100-calorie appetite will hand you.

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