GLP-1 Lab Guide

Section

Guides

4 pages in this section, most recently updated September 4, 2026. Each opens with a plain-English summary and cites its sources.

  1. 01 · Guides

    Featured

    Pre-therapy lab checklist: what is usually drawn before a first GLP-1 prescription, and where each item comes from

    You'll get: No GLP-1 label requires a blood test before you start. Most prescribers order a standard panel anyway.

    A one-page baseline list for semaglutide or tirzepatide: the tests most prescribers order, the tests the labels specifically do not ask for, the questions that matter more than any lab, and a printable checklist builder that adapts to your stage and conditions.

    Updated September 4, 2026
    Paper-cut illustration of an open book with a ribbon bookmark and a small compass rose

  2. 02 · Guides

    Featured

    Lab monitoring calendar for GLP-1 therapy: what is repeated, when, and which triggers move the date

    You'll get: The GLP-1 labels set no lab schedule. They set one trigger: check kidney function if vomiting or diarrhoea is draining you.

    A phase-by-phase calendar for labs on semaglutide or tirzepatide: baseline, the first 12 weeks, months 3 to 12, and beyond a year. Built from the label re-check instruction, the ADA intervals for diabetes, KDIGO for kidney disease, and the symptom triggers that bring a test forward. With a browser-only tracker.

    Updated September 4, 2026

  3. 03 · Guides

    How to read a lab report: reference intervals, flags, units, and the reasons a number can look wrong

    You'll get: The range printed on your report beats any range online, because each lab sets its own.

    What each column on a laboratory report means, why the reference interval printed there beats any range on the internet, what H and L flags do and do not tell you, how units trip people up, the pre-analytical things that move a result, and how to bring a report to a visit.

    Updated September 4, 2026

  4. 04 · Guides

    Glossary of lab terms for GLP-1 therapy: abbreviations, units and conversions

    You'll get: Short definitions of the test names, units and label phrases you will see on a lab report and on this site.

    Short definitions of the abbreviations, units and phrases that appear on lab reports and on the pages of this site, from A1c to volume depletion, with the unit conversions between US and SI reporting.

    Updated September 4, 2026