What labs should I ask my doctor for?
The best lab request is not a giant menu. It is a short list tied to risk, symptoms, medications, and what you would do differently after results come back.
Clinical answer
Short answer
Ask for baseline cardiometabolic and safety labs first: lipid panel plus ApoB if possible, A1c/glucose, CMP, CBC, kidney function, blood pressure, and targeted tests based on history.
Who should consider it
Adults doing prevention care, changing health habits, starting medication, tracking metabolic risk, or trying to understand fatigue, weight change, heavy periods, perimenopause symptoms, or family-history risk.
Who should skip or avoid it
Avoid asking for every trendy biomarker without a plan. It can generate false positives, cost, and anxiety without better decisions.
What to measure before / after
Baseline risk, the specific symptom/risk question, and the intervention timeline. Repeat only when the result can plausibly change care.
What I’d do first
Bring a focused question: 'I want to understand cardiovascular/metabolic risk and whether any deficiencies or safety issues are relevant.' Then ask which results would change management.
What would change my mind
A test moves onto my default list when it repeatedly changes decisions and is linked to outcomes, not just because it is fashionable in longevity circles.
A focused ask
You will usually get farther with a focused clinical question than a giant list copied from the internet. Ask for a prevention baseline, explain your family history and goals, and ask what the doctor would do with abnormal results.
- Cardiovascular/metabolic: lipid panel, ApoB if available, A1c, fasting glucose, blood pressure, Lp(a) once if family history or prevention focus.
- General safety: CBC, CMP, kidney function/eGFR, liver enzymes, electrolytes.
- Targeted: TSH, ferritin/iron studies, B12, vitamin D, urine albumin/creatinine, hsCRP, hormones—only when history makes them relevant.
References & citations
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