3 posts
A working account of what belongs in a comprehensive blood panel, which preanalytical variables move the numbers, and how to tell a real change from assay noise using biological variation and reference change values.
A technical answer to what biomarker testing at home can and cannot deliver: which analytes survive a mail-in kit, what dried blood spots and point-of-care sensors are good for, and how to build a longitudinal series you can analyze yourself.
Morning, fasted, rested, and identical from draw to draw. Here is which analytes move across the day, what the 48 hours beforehand do to your numbers, and how to write a draw protocol you can repeat for years.