Frequently Asked Questions
Labs, Testing & Diagnostics
Labs, testing and diagnostics FAQs for Protocol Health — blood panels, hormone/DUTCH testing, TruAge, Galleri, full-body MRI, SECA, at-home labs. If you do not see your question here, request a consultation and we can help you choose the right next step.
1. What lab tests do I need before starting a health-optimization program?
Most patients begin with comprehensive baseline bloodwork so our physicians can individualize your plan rather than guess. Depending on your goals, this may include a metabolic and lipid panel, inflammatory markers, thyroid, vitamin and mineral levels, and hormones. At our Scarsdale, NY clinic your physician reviews which panels make sense for you during consultation, and results are interpreted in the context of your history and symptoms.
2. What is included in a comprehensive blood panel at a longevity clinic?
A comprehensive panel typically goes well beyond a standard annual physical, looking at metabolic health, cholesterol particles, inflammation, blood sugar and insulin, thyroid, key vitamins, and hormones. The exact markers are selected by your physician based on your age, goals, and health history. At Protocol Health, our physician-led team reviews every result with you so the numbers translate into a clear, individualized plan.
3. What is DUTCH hormone testing and how does it work?
The DUTCH test (Dried Urine Test for Comprehensive Hormones) uses dried urine samples collected at home to give a detailed picture of hormones and how your body metabolizes them. It can offer a fuller view of sex hormones, cortisol patterns, and related metabolites than a single blood draw. Our physicians may recommend it when a more in-depth hormone assessment could support your individualized plan, and results are always reviewed in a clinical consultation.
4. Do I need to fast before my blood work?
Many panels — especially those measuring glucose, insulin, and cholesterol — are more accurate when you fast for 8 to 12 hours beforehand, with water still allowed. Other markers do not require fasting, so the requirement depends on which tests your physician orders. Our team gives you specific prep instructions before your appointment so your Scarsdale or telehealth visit goes smoothly.
5. What is the TruAge (biological age) test and what does it measure?
TruAge is an epigenetic test that estimates your biological age by measuring DNA methylation patterns, which can differ from your calendar age. It is used to give a snapshot of how your body may be aging and to track changes over time as part of a broader wellness program. At Protocol Health it is offered as one physician-guided data point among many, not a diagnosis, and is interpreted alongside your labs and history.
6. What is the Galleri multi-cancer early detection test?
Galleri is a blood-based screening test designed to look for a signal shared by many types of cancer, intended to complement — not replace — standard age-appropriate screenings like colonoscopy and mammography. It is generally considered for adults at elevated risk, and a positive signal requires further diagnostic workup. Our physicians can discuss whether Galleri is appropriate for you and coordinate follow-up, always framed as screening rather than a definitive answer.
7. Is a full-body MRI scan worth it, and what does it show?
A full-body MRI is a radiation-free imaging scan that can survey major organs and tissues and is used by some patients as part of a proactive screening approach. It can surface findings for further evaluation but may also identify incidental spots that need follow-up, so results should always be reviewed with a physician. Our team helps you decide whether a scan fits your goals and interprets findings in the context of your overall health picture.
8. What is SECA body composition analysis?
SECA is a medical-grade body composition analysis that estimates fat mass, skeletal muscle, and body water using bioelectrical impedance validated against clinical reference methods. It provides a more detailed view than a bathroom scale and is useful for tracking progress on weight, metabolic, and fitness goals over time. At our Westchester clinic, physicians use SECA data to help personalize and monitor your plan.
9. Can I do lab testing from home or does it have to be in the clinic?
Many tests can be collected at home, including DUTCH hormone kits and certain blood panels using at-home collection, which is convenient for tri-state patients using our telehealth option. Some panels and imaging still require an in-person draw or visit at our Scarsdale, NY clinic or a partner lab. Your physician recommends the most appropriate collection method based on which markers are being measured.
10. How long does it take to get lab results back?
Turnaround varies by test: standard blood panels often return within a few days, while specialized tests like DUTCH, epigenetic biological-age panels, or advanced screening can take one to several weeks. Once results are in, our physicians review them and walk you through what they may mean for your individualized plan. We aim to make interpretation clear rather than leaving you with raw numbers.
11. Are advanced lab tests and diagnostics covered by insurance?
Coverage varies widely: some conventional blood work may be billable to insurance, while many advanced and elective tests — such as epigenetic age testing, multi-cancer screening, or full-body MRI — are often out-of-pocket. Because plans differ, we recommend checking directly with your insurer about specific tests. Our team can tell you which diagnostics are typically covered versus elective so there are no surprises.
12. What should I expect at my first lab and diagnostics appointment?
Your first visit usually begins with a physician consultation to review your history, symptoms, and goals, followed by any recommended blood draw, body composition scan, or at-home test kits. You'll receive clear prep and collection instructions, and a follow-up to review results and build your individualized plan. Whether you visit our Scarsdale clinic in person or connect via telehealth across the NY/NJ/CT tri-state area, the process is physician-led from start to finish.
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