Labs 101: The Must Have Metabolic, Thyroid, and Hormone Tests Ep. 2

About this video

In Labs 101 episode two, Yurth argues a focused baseline panel gives more useful information than a large set of expensive specialty tests. For cardiovascular and metabolic risk she prioritizes ApoB and the ApoB to ApoA ratio over total cholesterol alone, a one-time lipoprotein(a) check because she describes it as largely genetic, selected vascular inflammation markers, and hemoglobin A1C paired with fasting insulin, with continuous glucose monitoring when insulin suggests hidden spikes. For thyroid she insists on free hormone measures and related markers beyond TSH alone. She closes with sex hormones for both men and women and IGF as a window on growth hormone, stressing that each has a context-dependent range to interpret.

Key takeaways

• Start with a high-yield baseline panel before ordering specialty longevity tests
• Pair A1C with fasting insulin because average glucose can hide insulin strain
• Ask for free thyroid hormones, not TSH alone, when assessing thyroid function
• Check lipoprotein(a) at least once since Yurth presents it as mainly inherited
• Interpret hormones together, including progesterone in men, rather than in isolation

Episode details: published August 23, 2025 · 274 views · 6:16 long. Summary written by Self Growth Videos from the episode itself. The longevity and peptide concepts described are Dr. Elizabeth Yurth’s, presented for education — not medical advice. Consult a qualified professional before changing your own health practices. Disclosure: Dr. Yurth is co-founder and Chief Medical Officer of the Boulder Longevity Institute, a clinic, and BLI Academy sells clinician education.

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