Preparing for Dialysis: What to Expect Before You Start

At Florida Kidney Physicians, we understand that preparing for dialysis can bring many emotions at once. You may feel relief that treatment is available, but also uncertainty about what dialysis will mean for your health, schedule, family, work, and daily routine.

This guide explains how doctors decide when dialysis may be needed, what usually happens before treatment begins, and how you can prepare physically and emotionally.

The goal is not to rush the process. The goal is to help you understand your options, plan ahead, and begin treatment with the right support in place.

Preparing for Dialysis vs. Starting Dialysis

A common concern is: “If my doctor is talking about dialysis, does that mean I need to start right away?”

Usually, the answer is no.

Planning for dialysis may begin before dialysis is actually needed. For some patients, conversations about access, transplant evaluation, home dialysis training, or dialysis center scheduling may begin in late CKD Stage 4 or early CKD Stage 5, especially when kidney function is declining steadily.

This is important because deferred dialysis does not mean deferred preparation. Even if dialysis can safely be delayed, your care team may still recommend education, vein protection, access planning, or transplant evaluation so you are not forced into an urgent start later.

Planning vs. Starting Dialysis

Dialysis planning may include	Dialysis may start when
Learning about dialysis options.	Symptoms of kidney failure affect daily life.
Protecting veins for possible future access.	Fluid overload cannot be controlled safely.
Planning an AV fistula, AV graft, or PD catheter.	Potassium, acid-base, or other lab problems become unsafe.
Discussing kidney transplant evaluation.	Blood pressure or volume status cannot be controlled.
Preparing for home dialysis supplies or training.	Nutrition declines despite medical care.
Meeting nurses, dietitians, and social workers.	Uremic symptoms, confusion, pericarditis, or other serious complications appear.

When and Why Dialysis Starts

Dialysis is considered when the kidneys can no longer keep the body in balance well enough with medical treatment alone. The kidneys normally help remove waste, control fluid, regulate electrolytes such as potassium, maintain acid-base balance, and support several other body functions.

When kidney failure becomes advanced, waste products, extra fluid, acid, and electrolytes can build up in the body. This can cause symptoms and complications that may no longer be controlled safely with medication, diet changes, or close monitoring.

Your nephrologist may begin talking with you about dialysis when your eGFR, or estimated glomerular filtration rate, becomes very low. eGFR is a blood-test-based estimate of how well your kidneys are filtering. Many patients begin dialysis planning in CKD Stage 5, when eGFR is usually below 15 mL/min/1.73 m².

However, dialysis does not start based on eGFR alone.

Major kidney organizations, including KDIGO and the National Kidney Foundation, emphasize that dialysis timing should be individualized. A very low eGFR is an important warning sign, but dialysis should not be started automatically at an arbitrary number if symptoms and complications can still be managed safely.

Your nephrologist considers the full clinical picture: symptoms, lab trends, fluid status, potassium level, acid-base balance, nutritional status, blood pressure, medications, quality of life, and your personal treatment goals.

Common reasons dialysis may be needed include:

Uremic symptoms, which are related to a broader buildup of retained waste products and changes in body chemistry when the kidneys can no longer filter well enough. Creatinine and urea are useful lab markers of reduced filtration, but symptoms are not caused by one lab value alone.
Fluid overload, such as swelling, shortness of breath, or fluid around the lungs that does not improve enough with medication.
Dangerous electrolyte problems, especially high potassium that does not respond safely to treatment.
Medically resistant acid-base problems, when the body cannot maintain a safe acid-base balance despite treatment.
Inability to control blood pressure or volume status with medications and diet changes.
Worsening nutrition or unexplained weight loss related to advanced kidney failure.
Cognitive changes, such as worsening confusion or trouble concentrating when related to kidney failure.
Serositis or pericarditis, which means inflammation around body linings such as the lining around the heart, when related to advanced kidney failure.
Other complications of kidney failure that cannot be controlled with medications, diet changes, or close monitoring.

Dialysis Timing

The timing of dialysis is individualized. This framework can help you understand why your care team may recommend starting treatment.

Cause, Mechanism, and Next Step

What is happening	Why it matters	What your care team may do
Retained waste products build up	Uremic symptoms can include nausea, poor appetite, itching, fatigue, metallic taste, confusion, or trouble concentrating. Creatinine and urea are markers of reduced filtration, but symptoms reflect broader changes in body chemistry.	Review symptoms, lab trends, medications, nutrition, and whether dialysis is likely to improve safety or daily functioning.
Fluid builds up in the body	Extra fluid can cause swelling, high blood pressure, shortness of breath, or fluid around the lungs.	Adjust sodium and fluid guidance, review diuretics when appropriate, and consider dialysis if fluid cannot be controlled safely.
Potassium becomes dangerously high	High potassium can affect heart rhythm and may become urgent if it does not respond to treatment.	Treat potassium medically, review medications and diet, repeat labs when needed, and consider urgent dialysis if levels remain unsafe.
Acid builds up in the blood	Advanced kidney failure can make it harder for the body to maintain a safe acid-base balance.	Review blood chemistry, medications, diet, and whether dialysis is needed to help restore balance.
Blood pressure or volume cannot be controlled	Uncontrolled blood pressure or fluid overload can strain the heart, lungs, and blood vessels.	Adjust medications, sodium and fluid recommendations, and dialysis planning if medical therapy is no longer enough.
Nutrition worsens	Poor appetite, nausea, inflammation, or uremia can lead to weight loss, weakness, and lower resilience.	Involve a renal dietitian, monitor weight and labs, and consider dialysis if nutrition continues to decline despite care.
Kidney function continues to decline	Very low kidney function increases the risk of complications, especially when symptoms or lab abnormalities are worsening.	Increase monitoring, discuss kidney replacement therapy options, plan access, and prepare for a safer start.

Dialysis, Kidney Transplant, and Conservative Kidney Management

Dialysis is one option for treating kidney failure, but it is not the only treatment path. Your nephrologist can help you understand which options fit your health, goals, and preferences.

Dialysis: A treatment that replaces part of the kidneys’ work by removing extra fluid and waste products. It may be done through hemodialysis or peritoneal dialysis.
Kidney transplant: A treatment option for some patients. Evaluation may begin before dialysis starts, especially when kidney function is very low and the patient may be a candidate.
Conservative kidney management: A care plan focused on symptoms, comfort, medications, nutrition, and quality of life without dialysis or transplant. This may be appropriate for some patients based on age, other medical conditions, personal goals, or expected benefit.

The right plan should be made through shared decision-making with your nephrologist and care team.

Planned Starts vs. Urgent Starts

Ideally, dialysis begins as a planned start. That means you and your care team have already discussed the treatment type, your dialysis access is ready or nearly ready, and you know what to expect.

However, some patients do need dialysis suddenly. This may happen if kidney function declines faster than expected or if a serious complication develops before the access is ready. In those situations, dialysis may need to begin in a hospital or with a temporary catheter.

The purpose of early preparation is to reduce the chance of an urgent start whenever possible.

Seek urgent medical care right away if you have severe shortness of breath, chest pain, fainting, new confusion, severe weakness, severe swelling, or symptoms that feel sudden or dangerous. Do not wait for a routine appointment if symptoms are severe.

Choosing a Dialysis Type

Before dialysis begins, your nephrologist will help you understand the treatment options available to you. The main dialysis options include in-center hemodialysis, home hemodialysis, and peritoneal dialysis.

There is no single best option for everyone. The right choice depends on your medical needs, home situation, support system, schedule, comfort with self-care, and personal goals.

Dialysis Options Comparison

Dialysis option	Where it happens	Access needed	Training	Schedule flexibility	Home requirements	Common considerations
In-center hemodialysis	Dialysis center.	AV fistula, AV graft, or catheter.	Basic education; staff perform treatment.	Usually fixed schedule.	Transportation to and from the center.	Good for patients who prefer staff-led treatment or do not want home treatment responsibilities.
Home hemodialysis	Home.	AV fistula, AV graft, or catheter.	Patient and/or care partner training required.	Often more flexible, depending on prescription.	Space for machine and supplies, reliable utilities, clean treatment area.	May offer more independence but requires training, responsibility, and home readiness.
Peritoneal dialysis	Home, work, or travel setting when appropriate.	Soft catheter in the abdomen.	Patient and/or care partner training required.	Often flexible; may be done manually during the day or with a machine overnight.	Clean space, hand hygiene, storage for multiple supply boxes.	Avoids vascular access for HD but requires careful infection prevention and daily participation.

Physical Preparation and Access Planning

One of the most important parts of dialysis readiness is planning your access. Dialysis access is the way blood or dialysis fluid moves in and out of the body during treatment.

Hemodialysis Access

For hemodialysis, access is usually created in the arm or placed in a large vein. Options include:

AV fistula: A surgeon connects an artery and a vein, usually in the arm. This is often preferred when possible because it can last longer and has fewer infection and clotting problems than other access types.
AV graft: A soft tube connects an artery and vein. This may be used when a fistula is not possible or not the best option.
Central venous catheter: A soft tube is placed into a large vein, often in the neck or chest. This may be used when dialysis must start before a fistula or graft is ready, or when other access options are not possible.

Although an AV fistula is often preferred when feasible, the safest access depends on blood vessel health, expected timing, dialysis modality, prior procedures, infection risk, and the patient’s overall treatment plan.

An AV fistula needs time to mature before it can be used. This can take weeks to months, depending on the person. Planning early gives the access time to heal and reduces the chance of starting dialysis with a temporary catheter.

Your team may also teach you how to protect your access arm. This may include avoiding blood pressure checks, blood draws, IV lines, tight clothing, or pressure on that arm if instructed by your care team.

When to Call About a Hemodialysis Access

Call your dialysis team or seek medical help promptly if you notice:

No vibration, pulse, or “thrill” where you were told to check the access.
A major change in the thrill or blood flow.
Bleeding that does not stop with the instructions you were given.
Redness, warmth, swelling, drainage, or increasing pain near the access.
Fever or chills.
New hand pain, numbness, coldness, or color change in the access arm.
Any concern that the access may be infected, clotted, or not working properly.

Temporary Catheter Safety

If you need a temporary dialysis catheter, your team will explain how to care for it. A catheter requires strict infection-prevention practices.

General safety steps may include:

Keep the dressing clean and dry.
Do not open, disconnect, or manipulate the catheter yourself unless your dialysis team specifically trains you to do so.
Wash your hands before touching the area around the catheter.
Follow instructions about showering, bathing, and dressing protection.
Report fever, chills, drainage, redness, swelling, pain, or a loose dressing right away.

Peritoneal Dialysis Access and Home Setup

For peritoneal dialysis, a soft catheter is placed in the abdomen. The catheter allows dialysis fluid to enter and drain from the belly.

Your team will teach you how to:

Keep the catheter exit site clean and dry.
Wash your hands carefully before handling supplies.
Store dialysis supplies safely.
Recognize signs of infection.
Set up a clean treatment space at home.
Plan for a dry, clean storage area for dialysis supplies, which are often delivered in multiple boxes and may take up more space than expected.

A PD catheter usually needs time to heal before full treatment begins. Your nephrologist and PD team will explain the timing and training plan.

If You Choose PD, Call Right Away If You Notice:

Cloudy dialysis drainage fluid.
Belly pain or tenderness.
Fever or chills.
Nausea or vomiting with abdominal symptoms.
Redness, drainage, swelling, or pain around the catheter exit site.
Any break in sterile technique during an exchange.
A catheter problem that prevents fluid from draining or filling properly.

These symptoms may be signs of infection, including peritonitis, which needs prompt medical attention.

Preparing Your Home and Daily Routine

Dialysis planning is also practical. The more you prepare your daily routine, the smoother the transition may feel.

Depending on the type of dialysis you choose, preparation may include:

Planning transportation to and from the dialysis center.
Asking about work, school, or caregiving schedules.
Setting up a clean space for home dialysis, if appropriate.
Making room for supplies, especially for peritoneal dialysis or home hemodialysis.
Keeping pets away from treatment and supply areas.
Learning how to store sterile supplies safely.
Creating a list of emergency contacts and after-hours numbers.
Using a notebook or phone notes to track symptoms, questions, and instructions.

Small steps taken before dialysis starts can prevent stress later.

Do Not Do This Without Your Nephrologist

To stay safe, do not make major kidney-related changes on your own.

Do not do the following unless your nephrologist or care team specifically instructs you:

Stop blood pressure, diabetes, heart, kidney, or water pills.
Start potassium supplements.
Sharply restrict fluids.
Sharply restrict protein.
Use NSAIDs such as ibuprofen, naproxen, or similar anti-inflammatory pain relievers.
Start herbal supplements or over-the-counter products without asking.
Skip access appointments.
Delay urgent care for severe symptoms.
Change dialysis-related instructions, access care instructions, or diet restrictions on your own.

Your plan should be personalized to your labs, symptoms, medications, dialysis type, and overall health.

Other Medical Steps Before Dialysis

Before dialysis starts, your nephrologist may review several parts of your health plan.

This may include:

Checking vaccination status, including whether hepatitis B vaccination and immunity testing are needed before dialysis.
Reviewing blood pressure medications, diabetes medications, diuretics, supplements, herbal products, and over-the-counter medicines.
Avoiding over-the-counter NSAIDs such as ibuprofen, naproxen, or similar anti-inflammatory pain relievers unless your nephrologist specifically says they are safe for you.
Treating anemia when appropriate.
Managing bone and mineral changes related to kidney disease.
Reviewing potassium, phosphorus, sodium, protein, and fluid guidance with a renal dietitian.
Discussing whether transplant evaluation should be considered.
Planning transportation, work schedules, caregiving responsibilities, or home dialysis setup.

Do not change your medications, fluid intake, potassium intake, or protein intake on your own. These decisions should be personalized by your nephrologist and renal dietitian.

The Emotional Transition

Hearing that dialysis may be needed can feel overwhelming, even when you have known about kidney disease for a long time. Many patients feel anxious, sad, frustrated, or resistant at first. Some worry about depending on a machine, losing independence, or changing their routine.

These feelings are common, and they deserve attention.

Emotional preparation is part of dialysis readiness, not a separate issue. The transition to dialysis can be associated with significant emotional changes, including anxiety, depressed mood, sleep problems, or fear about the future. Let your care team know if these feelings are affecting your appetite, sleep, motivation, relationships, or ability to make decisions.

Emotional preparation may include:

Asking your care team to explain the treatment plan more than once.
Bringing a family member, caregiver, or trusted friend to education visits.
Speaking with a dialysis social worker about insurance, transportation, work, and family concerns.
Asking about counseling, mental health support, or screening for anxiety and depression.
Connecting with patient education resources or support groups.

Preparing emotionally does not mean you have to feel ready all at once. It means you have time to ask questions, involve your support system, understand your options, and build confidence step by step.

At Florida Kidney Physicians, we believe preparation helps replace fear with a clearer plan. You do not have to navigate this transition alone.

Meeting Your Dialysis Team

Dialysis care involves more than one clinician. As you prepare, you may meet several members of your care team.

Your dialysis team may include:

Nephrologist: Oversees your kidney care, monitors your labs and symptoms, and helps decide when dialysis should start.
Dialysis nurses: Teach you about treatment routines, access care, symptoms to report, and what to expect during dialysis.
Renal dietitian: Helps personalize your diet, including sodium, potassium, phosphorus, protein, and fluid guidance.
Social worker: Helps with emotional adjustment, insurance questions, transportation, work concerns, family support, and practical planning.
Vascular surgeon or interventional specialist: Places or evaluates hemodialysis access, such as an AV fistula or AV graft.
Peritoneal dialysis team: Teaches catheter care, infection prevention, home setup, and exchange training if you choose PD.
Transplant team, when appropriate: Evaluates whether kidney transplant may be an option.

Questions to Ask Before Dialysis Starts

Bringing questions to your visits can help you make informed decisions. Consider asking:

Which dialysis options fit my health and daily routine?
Am I a candidate for kidney transplant evaluation?
When should I start access planning?
Should I protect one arm from blood draws or blood pressure checks?
What symptoms should make me call urgently?
Which medications, supplements, or over-the-counter products should I avoid?
How should I adjust my diet, fluids, potassium, phosphorus, sodium, or protein?
How much space would I need for home dialysis supplies?
Who can help me with transportation, insurance, work, or family concerns?
What should I do if I feel anxious, depressed, or overwhelmed?

What to Expect During the Transition

The first weeks before and after starting dialysis are a period of adjustment. Your body may need time to adapt, and your care team may need to fine-tune your treatment.

Some symptoms, such as swelling, nausea, poor appetite, itching, or mental fog, may improve once dialysis begins, especially when those symptoms are related to kidney failure or fluid buildup. Other symptoms, such as fatigue, cramping, blood pressure changes, or feeling washed out after treatment, may require adjustment.

During the transition, you can expect:

Frequent check-ins with your nephrologist and dialysis team.
Monitoring of weight, blood pressure, symptoms, and lab results.
Adjustments to medications.
Diet and fluid guidance based on your labs and treatment response.
Education about access care and infection prevention.
Support for emotional, social, and financial concerns.

Keeping a simple symptom journal can help. Track your energy, appetite, sleep, swelling, breathing, mood, blood pressure if instructed, and any symptoms after treatment. Bring your notes to visits so your care team can personalize your plan.

How Early Education Helps

Early education helps you make decisions before dialysis becomes urgent. It gives you time to understand your options, prepare your access, involve family or caregivers, and plan your routine.

Predialysis education can help you:

Understand how hemodialysis and peritoneal dialysis work.
Compare center-based and home-based treatment options.
Prepare your access before dialysis is needed.
Plan transportation or home treatment space.
Learn what symptoms should be reported promptly.
Reduce anxiety by knowing what will happen next.
Make decisions that reflect your medical needs and personal goals.

The more prepared you are, the less overwhelming the transition may feel.

Frequently Asked Questions

How do I know it’s time to start dialysis?

Your nephrologist will recommend dialysis based on your symptoms, lab trends, fluid balance, electrolyte levels, overall health, quality of life, and treatment goals. eGFR is important, but it is not the only factor. The goal is to start when dialysis is expected to help your health and safety, and to avoid an emergency start when possible.

Is preparing for dialysis the same as starting dialysis?

No. Preparing for dialysis may include education, access planning, vein protection, transplant discussion, and home planning before dialysis is actually needed. Planning ahead does not always mean you will start dialysis right away.

Can dialysis be delayed safely?

Sometimes, yes, if symptoms and lab problems are controlled and your nephrologist believes it is safe to continue monitoring. But delaying dialysis is not the same as delaying preparation. Your care team may still recommend education, access planning, or transplant evaluation.

What is CKD Stage 5?

CKD Stage 5 is the most advanced stage of chronic kidney disease. It usually means kidney function is very low, often with an eGFR below 15 mL/min/1.73 m². At this stage, your care team may discuss dialysis, transplant evaluation, or conservative kidney management depending on your symptoms, labs, health status, and goals.

What are the main dialysis options?

The main dialysis options are in-center hemodialysis, home hemodialysis, and peritoneal dialysis. Each option has different access needs, training requirements, schedules, and home considerations. Your care team can help you choose the option that best fits your medical needs and daily life.

Should I be evaluated for a kidney transplant?

Some patients with advanced kidney disease may be candidates for kidney transplant evaluation before dialysis starts. Your nephrologist can explain whether transplant evaluation is appropriate based on your health, kidney function, other medical conditions, and personal goals.

What symptoms should make me call urgently?

Call your care team or seek urgent medical care right away for severe shortness of breath, chest pain, fainting, new confusion, severe weakness, severe swelling, fever with access concerns, cloudy PD drainage fluid, belly pain on PD, or any symptom that feels sudden or dangerous.

Should I stop any medications before dialysis?

Do not stop medications on your own. Your nephrologist will review your prescriptions, supplements, and over-the-counter medicines. Some medicines may need dose changes as kidney function declines. You should also ask before using NSAIDs such as ibuprofen or naproxen.

Who can help me with the emotional side of dialysis?

Your care team can help connect you with support. Dialysis nurses, social workers, counselors, family members, caregivers, and patient education resources can all play an important role in helping you adjust emotionally, socially, and practically.