8 posts
A BUN of 5 mg/dL is almost always a reflection of protein intake, hydration, or liver urea synthesis rather than a problem in itself. Here is how to read it, what to pair it with, and when it deserves a clinician's attention.
A decade-by-decade view of which blood measurements carry information, how often to repeat them, and why interpretation gets harder after 70. Written for people who want to keep their own longitudinal record.
How to choose a blood test cadence from analyte kinetics and biological variation, how to tell a real change from assay noise using reference change values, and how to structure the data so you can analyze it yourself.
An extended panel measures a few dozen analytes. How to choose them, how to space the draws, and how to store the results so you can compute on them.
A blood panel measures a few dozen analytes in one tube at one moment. Here is what that covers, why single results mislead, and how to store and analyze your own results over time.
A working method for reading your own labs: get the data as structured records, compare against your own history rather than the population reference interval, and use the reference change value to tell a real shift from noise.
A blood panel for athletes and the timing rules that make its numbers interpretable. Covers reference change arithmetic and exporting lab data.
Monthly blood work is physiologically safe for almost everyone, but most analytes change slower than the noise floor of the assay. Here is how to pick a testing interval per marker, standardize the draw, and detect real change in your own data.