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Disease Management

IgAN Diagnosis: Symptoms, Tests, and Treatment

By 
the PicnicHealth Team

Mar 30, 2023 • 4 min read

IgA nephropathy (IgAN) is a kidney disease that can cause inflammation and damage to the kidneys due to the deposition of the immunoglobulin A (IgA) protein in the tiny filters in the kidneys, called ‘glomeruli’, which can lead to kidney dysfunction. The diagnostic process for IgAN usually involves a combination of tests to evaluate kidney function and determine the extent of damage.

One of the first steps in diagnosing IgAN is evaluating the patient's symptoms, which may include blood in the urine, proteinuria (protein in the urine), and high blood pressure. A urine test and a blood test can help measure protein and creatinine levels, respectively, which are important indicators of kidney function.

The glomerular filtration rate (GFR), which measures how blood is being filtered by the kidneys each minute, is also an important diagnostic test. If IgAN is suspected, a kidney biopsy may be performed to confirm the diagnosis and assess the extent of the damage.

While medical tests such as blood and urine tests can provide valuable information about kidney function and the presence of IgAN, a kidney biopsy is the most definitive test for diagnosing the disease. However, you and your doctor should also be aware of common IgAN symptoms, such as:

  • Proteinuria: IgAN can cause the kidneys to leak protein into the urine, resulting in proteinuria. This can make urine appear foamy or frothy.
  • High blood pressure: IgAN stunts kidney efficiency, leading to high blood pressure. High blood pressure can be a sign of advanced disease and increase the risk of further kidney damage.
  • Swelling: As IgAN progresses, it can cause fluid to accumulate in the body, leading to swelling in the legs, ankles, and feet.
  • Fatigue and weakness: IgAN can cause anemia, which can lead to fatigue and weakness.

It is important to know that not everyone with IgAN will experience symptoms, especially in the early stages of the disease. This is why it’s important to undergo regular medical check-ups and kidney function tests to detect the disease early and start treatment as soon as possible. If you have any concerns about your kidney health, don’t hesitate to talk to your doctor.

Kidney Biopsy

To diagnose and evaluate the severity of IgAN, your doctor may recommend a kidney biopsy. Here’s what you can expect during the procedure:

  1. Preparing for the biopsy: Before the biopsy, you will undergo a series of tests to assess your kidney function and determine if you are healthy enough for the procedure. You may need to avoid certain foods and medications for some time before the biopsy to minimize the risk of complications such as bleeding or infection.
  2. Administering anesthesia: You will receive a local anesthetic to numb the area where the biopsy needle will be inserted. In some cases, you may also receive a sedative to help you relax.
  3. Inserting the biopsy needle: Once the area is numb, the doctor will insert a biopsy needle through the skin and into your kidney. The needle is guided by ultrasound or another imaging technique to ensure that it is in the correct position. The doctor will then remove a small sample of kidney tissue using the needle.
  4. Monitoring and recovery: After the biopsy, you will be monitored for some time to ensure that they are stable and there are no complications. You will need to lie down for several hours to minimize the risk of bleeding. You may also need to avoid certain activities for a period of time, such as heavy lifting or strenuous exercise, to allow your kidney to heal.

After the biopsy, it’s important to work closely with your doctor to manage your IgAN symptoms. This may include learning about IgA nephropathy foods to avoid, controlling your blood pressure, and addressing other underlying health conditions that can worsen IgAN symptoms. Some patients may require medication or other treatments to slow the progression of the disease.

While there is no cure for IgAN, symptoms can be managed, and patients can go on to live a fulfilling life. Undergoing a kidney biopsy is one of the first steps in evaluating the severity of your illness and determining the best course of treatment. If you have any questions or concerns about the biopsy procedure or your IgAN diagnosis, don’t hesitate to speak with your doctor.

IgA Nephropathy Stages

Recognizing the progression of IgAN is important for managing symptoms. IgAN stages include:

  • Stage 1: In the early stages of IgAN, there may be no symptoms or only mild symptoms such as blood or protein in the urine.
  • Stage 2: In this stage, there may be mild to moderate kidney damage, with slight reductions in kidney function.
  • Stage 3: Stage 3 is divided into two sub-stages (3A and 3B), and is characterized by moderate to severe kidney damage and a significant reduction in kidney function.
  • Stage 4: Severe kidney damage and a significant reduction in kidney function typically accompany stage 4 of the disease.
  • Stage 5: This is the most advanced stage of IgAN, also known as end-stage renal disease (ESRD). In this stage, the kidneys are no longer able to function, and dialysis or kidney transplantation is necessary to sustain life.

It’s important to recognize IgAN symptoms at each stage of the disease to manage your health appropriately. By managing their health and working closely with your doctor, you can oftentimes slow the progression of IgAN.

IgA Nephropathy Diet

Eating a healthy diet is an important part of managing IgAN symptoms. The standard IgA nephropathy diet consists of low-sodium, low-potassium foods. It’s important to work closely with your healthcare provider to develop a diet plan that meets your unique needs and includes IgA nephropathy foods to avoid.

An IgAN diet book can be a valuable resource for those looking to take an active role in managing their kidney disease through dietary modifications. While there is no one-size-fits-all diet for IgAN, a diet book can provide helpful guidance on how to make healthy food choices that can support overall kidney health and slow the progression of the disease.

These books often include IgA nephropathy diet recipes, which can be especially helpful for those that have just been diagnosed with the disease and need to restructure their diet. By learning to cook new and varied recipes, you can take control of your symptoms and improve your quality of life. If you have any questions about your diet and IgAN be sure to speak with your doctor.

IgA Nephropathy Treatment

IgAN treatment depends on the severity of the disease, the extent of kidney damage, and the symptoms that the patient is experiencing. Immunosuppressants and steroids are two options for managing IgAN symptoms.

Immunosuppressants work by suppressing the immune system to prevent the body from attacking the kidneys, which can reduce symptoms and stop the disease from progressing. Steroids decrease inflammation in the kidneys and can reduce proteinuria. However, steroids can also have undesired side effects, such as an increased risk of infection and weight gain.

Tarpeyo, a type of steroid, is also used to treat IgAN by reducing inflammation in the kidneys.

By working closely with your doctor and finding the right treatment options, you can better manage IgAN flare-up symptoms and slow the progression of the disease. Patients should speak with their doctors to determine which types of treatments and medications are right for them.

Can IgA Nephropathy Be Reversed

IgAN doesn’t currently have a cure, and there is a relatively high recurrence rate for kidney transplant patients. However, by making the right lifestyle changes, patients can reduce IgAN flare-up symptoms and prevent the disease from worsening. Here are some of the things patients can do to improve their health:

  • Diet: A healthy, balanced diet is important for managing IgAN. Patients should limit their intake of salt, protein, and cholesterol, as these can increase the workload on the kidneys.
  • Exercise: Regular exercise can help improve kidney function, reduce blood pressure, and maintain a healthy weight.
  • Blood pressure management: High blood pressure can damage the kidneys and worsen IgAN. Patients should work with their doctors to manage their blood pressure through lifestyle changes and/or medications.
  • Limiting alcohol: Limiting alcohol consumption can also help reduce blood pressure and protect the kidneys.

Although there isn’t a cure for IgAN yet, patients can contribute to research to aid in the development of new and improved treatments. PicnicHealth allows patients to participate in research from home and receive updates on how the research is evolving. In doing so, patients can help with larger-scale IgAN research and improve the quality of care.

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Create a List

List the names of all the doctors, hospitals, and other facilities your loved one visits regularly, along with those they have visited in the past. Try to go back as far as you can, striving for at least the last 5-10 years, but do your best. Even if you can’t remember them all, having a strong baseline can help you quickly identify gaps in records.

Ensure You Have the Appropriate Legal Status

It is important to make sure that you are fully empowered to make decisions on behalf of your loved one with Alzheimer’s. Your relationship status with the patient may not be enough to legally give you access to your loved one's medical information. It is a good idea to talk to an expert about securing special legal status, such as Power of Attorney (POA), a legal document that allows an individual to name someone as their decision maker should they no longer be able to make decisions on their own.

Gather and Organize the Medical Records in One Place

It’s important to have all of your loved one’s medical records together in one spot. This makes it much easier for you and your loved one’s physicians to accurately map the patient’s medical journey and more easily share information between doctors. Fortunately, tools exist to make record management and access simple. A free resource like PicnicHealth helps you collect and organize all of this information. PicnicHealth’s intuitive timeline allows you to pinpoint data across the medical history, eliminating your need for keeping heavy binders filled with paper records or keeping track of multiple software portal logins.

Review the Medical Records to be an Informed Advocate

The better you understand your loved one's medical history, the better you can advocate on their behalf. Access and understanding of this information will help you to ask informed questions with physicians. Through regular communication backed by the data in the medical records, you can help your loved one’s care team develop a more successful care plan.

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1. Build a support network.

When you’re juggling appointment times and insurance claims, putting a robust support system together might not strike you as the most urgent task. Investing the time to cultivate relationships with people can turn to in times of need will pay dividends. The next time you need a last-minute ride or just someone to listen, you won’t be on your own.

There are many condition-specific support groups and support groups for caregivers generally in person or online. In addition to the encouragement and empathy they provide, support groups can be a helpful source of tips, resources, and recommendations for navigating caregiving.

2. Stay organized.

The backbone of effective caregiving is organization. Keep medical information, appointment schedules, and medication lists in order. Use a planner or a digital service like PicnicHealth to stay on top of your responsibilities. This attention to detail can prevent future complications and reduce day-to-day stress.

3. Explore treatments and clinical trials.

We’ve seen incredible breakthroughs in treatment over the past couple of years, powered by patients and their caregivers participating in research. Stay in the loop about the latest in medical advancements and available resources that could benefit your loved one. Whether it’s a new therapy option or a community service that aids independence, being informed can make a world of difference in the quality of care you provide.

4. Make time for self-care.

It may seem self-centered to focus on self-care—but when you feel good, you can be a better caregiver. Whether it’s exercise, a mindfulness practice, a soak in the bath, or just time to rest when you need it, carve out those moments in the day when you can unwind, reset, and stay healthy mentally and physically. Think of it as building up your reserves of kindness, patience, and understanding—which can only benefit your loved one. No one can pour from an empty cup.

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LC-FAOD Odyssey: A Preliminary Analysis, presented at INFORM 2021

Data from real-world medical records:

(from 13 patients with LC-FAOD)

16 yrs old

Median age at enrollment

38% Female

15 providers / patient

7.5 years of data / patient

Data from patient-reported outcome (PRO) survey

(from 13 patients with LC-FAOD)

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However, it's important to consult with a healthcare provider or registered dietitian to determine the appropriate amount of protein for your individual needs. In general, a diet with moderate protein intake (about 0.8 grams per kilogram of body weight per day) is recommended for people with kidney diseases.

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A tablet, phone, or laptop with a working camera, microphone, and stable internet connection.
A quiet, distraction-free area with enough space to walk a few steps if applicable.
A chair that you can use during any movements or tasks you’ll be asked to perform.
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What to Expect

Before your video call:

Book Your Assessment
Visit your to-do list on your PicnicHealth Research Dashboard or click the scheduling link sent to your email. Note: Search for “New task for the ORBIT-CIDP Study" to find the video call scheduling link.
Receive Confirmation
Check your email for a confirmation with your scheduled video call time and instructions.

On the day of your video call:

Click on Video Link
Join your personal video call using the link we sent by email, or text message, or find it on your research dashboard.
Meet your nurse
A Registered Nurse (RN) will guide your virtual assessment, which will last about 30 minutes.
Complete the Physical Activity Assessment (INCAT)
The nurse will guide you through questions and, if needed, physical tasks to help researchers gain a deeper understanding of CIDP.
Complete the Movement Assessment (Optional)
If you participate, a nurse will guide you through three short recorded movement activities to complete as best you can:
Chair Task
While seated with your arms crossed over your chest and hands on oppositeshoulders, you’ll be asked to stand up, remain standing for 20 seconds, and then sit back down.
Arm Movement Task
While seated with your arms resting at your sides, you’ll be asked to raise both arms out to the sides until they meet above your head, then lower them back to your lap.
Finger Dexterity Task
While seated, raise your right hand with fingers extended. Touch your thumb to each fingertip in order, then reverse. Repeat with your left hand. This will then be repeated with your left hand.
Earn Compensation

Receive up to $55 for your participation:

  • $25 for completing the Physical Activity Assessment (INCAT).
  • $30 for the Optional Movement Assessment.
Recording: Your research assessment may be recorded to ensure accurate data collection. If you participate in the optional Movement Assessment, it will also be recorded. These recordings may capture your voice and responses, but identifiable information like your face, name, or background will be removed to protect your privacy.
Opt Into the Smart Insole Study Activity
Complete the opt-in survey to confirm your participation.
Receive Your Smart Insoles
Your smart insoles will be shipped to your home via FedEx and should arrive within 1 week.
Create Your Account

You’ll receive an email from Celestra Health with your account details. Follow those steps to set up your account.

  • If you don’t see an email from Celestra Health in your inbox, please check your spam or junk folder.
Download the App
After creating your account, you’ll be directed to a landing page with links to the App Store or Google Play. Use the link to download the correct version of the app for your device.
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Log In
Open the app and log in using the email address and password you used when creating your account.
Enable Permissions
  • For iOS users: Enable Motion & Fitness and allow access to Apple Health.
  • For Android users: Enable Activity Recognition permissions.
Connect Your Insoles
Turn on Bluetooth, and follow the app's instructions to connect your smart insoles.
Enable Notifications
Enable push notifications to stay updated on reminders and activity progress.
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Start Walking Sessions
When you’re ready to perform a walking session, tap ‘Start’ on the Ad Hoc Walking task card in the app.
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Need Help?
Should you need to contact Celestra Health support for any reason, you can submit a ticket through the Help section of the app by tapping the Submit A Ticket card and filling out the form. A Celestra Health representative will typically respond within one business day.
A fully charged device (smartphone, tablet, or laptop) with a working camera, microphone, and stable internet connection.
A quiet, well-lit space that is free from distractions.
Good lighting so your face is clearly visible; having a small flashlight or your phone’s flashlight nearby can help with skin, scalp, or joint checks.
Flexible device positioning so you can easily adjust or prop up your device hands-free if the research staff asks to view specific areas (such as your face, hands, or scalp).
Space to move in case you are briefly asked to stand or walk a few steps.
Your medication information, including your current steroid(s) and BENLYSTA® (belimumab) — either the medication bottles or a list with doses and schedule.
Time to focus without interruptions so the visit can be completed comfortably.
Before Your Video Call:
Schedule your visit
Use the scheduling link on your PicnicHealth Research Dashboard or the link sent to your email.
Tip: Search your inbox for “New task for the BEACON-SLE Study - schedule your remote visit” to find the scheduling email.
Check your confirmation
You’ll receive an email with your appointment time and instructions for joining the video call.
On the Day of Your Video Call:
Join the call
Click the Zoom link sent to you by email or text message, or use the link available on your research dashboard.
Meet with the research staff member
  • They will ask you structured questions about your health and any lupus symptoms you’ve experienced over the past 30 days.
  • If needed, they may guide you through a few simple visual checks (such as looking at your skin, hair, joints, or mouth). You can always tell them if you’re not comfortable with anything.
Receive Compensation
You’ll receive up to $60 for completing your visit.
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