T3, Free
This test is typically ordered if patients exhibit symptoms of hyperthyroidism or if other thyroid test results, like TSH or FT4, are unusual.
FAQ
Answers to your questions about lab testing and services.
Stephanie Strudley
Stephanie Strudley, CNS, is a functional medicine nutritionist and the founder of Upstream Wellness. She helps driven, health-conscious adults who've done "everything right" and still don't feel like themselves — connecting the dots between symptoms, labs, and lifestyle to uncover what's actually going on. Her approach is shaped by an unconventional path: a background in ecology and systems biology, and her own experience navigating serious, unresolved health challenges before finding root-cause care herself. She doesn't believe in one-size-fits-all protocols or quick fixes — she believes health is more like solving a puzzle than following a formula, and her role is to help clients ask better questions, interpret their own data, and build a plan that fits their unique biology and life.
My websiteFocus areas
Cardiovascular Health
Gastrointestinal Health
Metabolic Health
Women's Health
States of practice
California
Colorado
Maryland
Massachusetts
Oregon
Texas
Washington