Endocrinology

Building Your Care Team and First Visit Prep

At a Glance

People with familial hyperaldosteronism type I benefit from coordinated care from hormone and genetics specialists. Before the first visit, bring original aldosterone, renin, and potassium results, genetic records, a family history, home blood pressure readings, and a complete medication list.

Because Familial Hyperaldosteronism Type I (FH-I) is a rare condition that affects the hormones, heart, and blood vessels, managing it requires a specialized team of experts ^[1]. You are looking for a “multidisciplinary” team—doctors from different fields who communicate with each other to manage every aspect of the condition ^[1]^[2].

The core of your care team should include:

Endocrinologist: The primary manager of your team. Ideally, this should be an expert in primary aldosteronism or inherited endocrine hypertension ^[1]^[3]. For children, a Pediatric Endocrinologist is essential to monitor growth and development ^[1]^[4].
Medical Geneticist: This specialist helps manage the genetic testing for the CYP11B1/CYP11B2 chimeric gene and provides genetic counseling for other family members who may be at risk ^[3]^[2].

Other specialists, such as a Cardiologist, Nephrologist, Ophthalmologist, or Cerebrovascular Specialist/Neurologist, may be added to your team based on specific findings, symptoms, or your local expertise, but they are not automatically required for every patient without neurologic symptoms or cardiovascular complications ^[5]^[1].

Finding a Specialized Center

Since FH-I accounts for only 1% to 5% of all familial primary aldosteronism cases, many community doctors may have never managed a patient with this specific mutation ^[6]^[7]. It is often beneficial to seek care at a major academic medical center or a specialized center for hypertension or adrenal disorders ^[1]. If you live far from such a center, your local doctors can often consult with these national experts to guide your care.

Your First Visit Checklist

To make the most of your initial consultation, arrive prepared with organized data. Specialists need to see the “big picture” of how your or your child’s body is reacting to the extra aldosterone ^[8]^[9].

Bring the following physical items to your appointment:

Comprehensive Lab Reports: Do not just bring summaries; bring the original lab printouts for aldosterone, renin, and potassium ^[8]^[10]. It is especially helpful to have results from before you started any blood pressure medications ^[8]. However, never stop or alter your blood pressure medications to get new labs without explicit medical instruction.
The Genetic Report: If genetic testing has already been done, bring the full laboratory report that shows the specific details of the CYP11B1/CYP11B2 fusion ^[11].
Detailed Family Tree: Create a list of close relatives (parents, siblings, grandparents, aunts/uncles) and note any history of:
- High blood pressure diagnosed before age 40 ^[6].
- Strokes or “mini-strokes” (TIAs) before age 40 ^[5].
- Known brain aneurysms or sudden deaths ^[12]^[13].
At-Home Blood Pressure Log: A one-to-two-week record of blood pressure readings taken at home provides a more accurate picture than a single reading in a stressful doctor’s office ^[14]^[15]. Use a validated upper-arm cuff, correct cuff size, and take rested seated readings.
Medication History: A list of every blood pressure medication you or your child has tried, including the dosage and any side effects or “failures” to lower the pressure ^[8].

Evaluating Your Specialist

It is okay—and encouraged—to verify that your doctor has the right experience for this rare condition. You want a specialist who is comfortable distinguishing FH-I from “look-alike” conditions and who understands the delicate balance of long-term steroid therapy ^[16]^[17]. A doctor who welcomes your questions and coordinates with your other specialists is your best partner in managing FH-I ^[1]^[2].

After a familial fusion is confirmed, an important next step is cascade testing: offering targeted genetic counseling and testing to first-degree relatives, even those without symptoms, to ensure early detection and proactive monitoring.

Common questions in this guide

Which specialists usually care for someone with FH-I?

An endocrinologist with experience in primary aldosteronism or inherited endocrine hypertension is usually the main care coordinator. A medical geneticist or genetic counselor can guide testing for the FH-I gene fusion and family counseling. Cardiology, nephrology, ophthalmology, or neurology may be added when symptoms, test results, or complications make them appropriate.

What should I bring to my first FH-I appointment?

Bring original lab printouts for aldosterone, renin, and potassium, along with the complete genetic report if testing has been done. Also bring a detailed family history with ages of diagnoses or vascular events, a one- to two-week home blood pressure log, and a complete medication history with doses and side effects.

Should I stop my blood pressure medicine before an FH-I appointment or test?

No. Do not stop or change blood pressure medicine to obtain new results or prepare for an appointment unless your clinician gives explicit instructions. Bring any older results from before treatment began and ask your care team whether medication changes are needed.

What does cascade testing mean for my family?

After testing confirms the family-specific gene change linked to FH-I, cascade testing means offering targeted genetic counseling and testing to first-degree relatives such as parents, siblings, and children. Relatives may be tested even without symptoms so clinicians can identify who needs early blood pressure and hormone monitoring.

How can I find a specialist familiar with familial hyperaldosteronism type I?

Consider an academic medical center or a specialized hypertension or adrenal-disorder center because FH-I is uncommon. If travel is difficult, local doctors may consult national experts while continuing your care close to home.

What family history details are important to share with the FH-I team?

Record relatives who had high blood pressure before age 40, strokes or transient ischemic attacks before age 40, known brain aneurysms, or sudden deaths. Include each person’s age at diagnosis or event and cover parents, siblings, grandparents, aunts, and uncles when possible.

Get notified when new evidence is published on Familial hyperaldosteronism type I.

We monitor PubMed for new peer-reviewed studies on this topic and email a short summary when something meaningful changes.

Key takeaways

An endocrinologist experienced in primary aldosteronism should coordinate FH-I care, with medical genetics support for testing and family counseling.
Bring original aldosterone, renin, and potassium reports, the complete genetic report, a detailed family history, a home blood pressure log, and a medication list to the first visit.
Do not stop or change blood pressure medicines to obtain testing or prepare for an appointment unless your clinician explicitly tells you to do so.
After a familial CYP11B1/CYP11B2 fusion is confirmed, first-degree relatives can be offered targeted counseling and genetic testing even if they have no symptoms.
An academic center specializing in hypertension or adrenal disorders may add expertise, and local clinicians can consult specialists when travel is difficult.

References (17)

1
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PMID: 38571460
2
Genetic Testing for Adrenal Tumors-What the Contemporary Surgeon Should Know.
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6
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8
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9
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10
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11
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12
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13
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14
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This page about preparing for Familial Hyperaldosteronism Type I care is for informational purposes only and does not constitute medical advice. Do not stop or change blood pressure medicines without explicit instructions from your clinician.