Understand the bloodwork done before and during GLP-1 treatment
Plain-language guides to the lab tests commonly ordered around semaglutide and tirzepatide treatment, what each one costs without insurance, and where to order it. Every clinical statement links to its source, and every price is dated.
The tests most often ordered
There is no single required panel. These five tests come up most often at a baseline visit. The prescribing clinician decides which ones are needed.
Hemoglobin A1c
Shows average blood sugar over the past two to three months. No fasting needed.
Cash price: $29 to $50
Comprehensive metabolic panel (CMP)
Fourteen measurements covering kidney and liver function, glucose, and electrolytes.
Cash price: $36 to $50.10
Lipid panel
Measures LDL, HDL, total cholesterol, and triglycerides. Fasting is often required.
Cash price: $29 to $59.10
TSH (thyroid)
Checks overall thyroid function. It does not screen for the C-cell tumors in the GLP-1 warning.
Cash price: $39 to $78
Complete blood count (CBC)
Counts red cells, white cells, and platelets, and measures hemoglobin.
Cash price: $28 to $44
All five, ordered separately, cost $164 to $267 across the online providers we checked on September 23, 2026. See the full price table.
Common questions
How this site works
- We explain, you decide with your clinician. We describe what each test measures and why it is commonly ordered. We never tell anyone which tests to get or what results mean.
- We cite and date everything. Clinical statements link to FDA labels, professional guidelines, NIH resources, or peer-reviewed research. Prices come from each company's own website on a stated date.
- We earn money from some links. Links to some lab testing companies are affiliate links. If you order through one, we may earn a commission at no extra cost to you. Affiliate disclosure.