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c/bloodwork·submitted 2 months ago by u/nabila_bakken

am I the only one who found ferritin harder than the injections

Baselinebranch of 8 comments

am I the only one who found ferritin harder than the injections. I am not trying to be the "source?" guy. I would just like a source. Different laboratories use different assay platforms with different calibration. Comparing across labs adds a systematic offset that is invisible on the report. Substantial weight loss…

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8 comments, started 2 months ago
u/pavel_nkemelu5 points·2 months ago

Agreed on assay changes. A lab switching platforms between your draws is invisible unless you ask.

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u/nnt_nate4 points·2 months ago

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.

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u/gentle_correctionnice about it3 points·2 months ago

Agreed on assay changes.

pavel_nkemelu is right that a reference interval is not a target. It is a description of a population.

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u/no_refunds_nr2 points·2 months ago

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

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u/leila_vasquez3 points·2 months ago

Brought the whole set to my clinician rather than one flagged value. Completely different conversation.

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