Genetic Testing in Barrington, IL

Genetic testing examines specific inherited markers. A result describes a variant you carry — not an event that has happened or will happen. What that variant means for you depends on your personal and family health history, your current health, and other testing, which is why results are discussed in a consultation rather than sent as a raw report.

Two markers patients commonly ask about are APOE and MTHFR. Both are well studied and both are frequently misread when encountered outside a clinical conversation.

APOE (apolipoprotein E) is a gene involved in how the body transports cholesterol and other lipids. Several common variants exist, and research has examined their relationship to long-term health. A clinician reviews which variant you carry alongside the rest of your clinical picture.

MTHFR (methylenetetrahydrofolate reductase) is a gene involved in folate metabolism. Variants in this gene are common in the general population, and their clinical significance is interpreted in context rather than in isolation.

Neither result is read on its own. Both are considered with your history, your labs, and what you want to plan for.

A genetic test result does not, on its own, determine whether you will develop a given condition. It describes inherited variation, and inherited variation is one factor among many a clinician weighs alongside your history and other testing.

That limit matters in both directions. A result that shows no variant of interest is not a guarantee of anything, and a result that does show one is not a diagnosis. What testing can offer is additional information to plan around, and a reason to have a more specific conversation with a clinician about screening and follow-up.

Testing may also be discussed for pharmacogenomic reasons — how you are likely to metabolize certain medications. Any conclusion drawn from that is a clinical judgment, made with your prescribing clinician.

Galleri is a blood-based multi-cancer early detection test offered through this clinic. It analyzes cell-free DNA in a blood sample for methylation patterns associated with a cancer signal, and, where a signal is found, reports a predicted signal origin to help guide next steps.

Galleri is a screening test, not a diagnostic one. It does not replace guideline-recommended cancer screening, and a result in either direction is followed up clinically. Whether Galleri is appropriate for you, and what a result would mean for your care, is determined during a consultation.