McCall McPhersonFounder, Modern Thyroid Clinic.

Thyroid Labs Look Great? Here’s What You Need to Know! 🧪💡

17 Dec 2024 · 0 min

Watch on YouTube

0:26

A short YouTube clip by McCall McPherson explaining that checking only TSH and T4 can be misleading: people who are "poor converters" may accumulate inactive T4 (analogy: crude oil not converted to gasoline), which raises measured T4 and suppresses TSH, producing the false impression that thyroid labs "look great." The clip highlights pitfalls of limited thyroid testing and conversion issues and implies the need for broader evaluation.

If someone is only checking your TSH and your T4 because you will have all this inactive hormone, all of this crude oil stockpiled in your garage, not converting to gasoline because you are a poor converter, which will make your T4 look. What? Oh, my gosh. You have so much T4, it looks amazing. Which will in turn suppress your TSH and also make that look amazing. So what your doctor, your clinician will tell you is, I checked your thyroid labs. Your thyroid labs look great.