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Do You Need Lab Work Before Starting a GLP-1 Medication?

When baseline labs are recommended and what providers commonly check.

Lab work before starting a GLP-1 medication is often recommended — though the exact panel depends on your health history and clinical guidelines.

Why labs matter: GLP-1 medications affect glucose metabolism. Providers want to rule out contraindications, establish baselines, and identify conditions that need concurrent management.

Commonly checked tests: Fasting glucose or A1C, comprehensive metabolic panel, lipid panel, and thyroid function when indicated. Additional tests may apply based on individual risk factors.

Functional health option: NeuMed's Functional Health Lab panels can complement medical weight loss evaluation — see /functionalhealth/ and /shop/fhl/ for panel options.

During treatment: Follow-up labs may monitor metabolic markers, kidney function, or other values based on your plan and duration of therapy.

Discuss at consultation: Your NeuMed provider explains which labs are appropriate for you before starting semaglutide, tirzepatide, or another GLP-1 option.

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