How to Prepare for a Nephrologist Appointment

A referral to a nephrologist — a kidney specialist — is more common than many people expect. Kidney disease often develops silently, without symptoms in its early stages, and is frequently discovered through routine blood or urine tests. Being referred does not necessarily mean your kidneys are failing; it means your doctor wants a specialist’s assessment of what the numbers mean and what to do next.

This guide walks you through exactly how to prepare — what to track, what to bring, and what to ask — whether you are in Singapore, Australia, or the United States.

The better organised you are, the more your nephrologist can achieve in the appointment time available.

1. What a Nephrologist Treats

Nephrologists specialise in the diagnosis and management of kidney diseases and conditions that affect how the kidneys function. You may be referred for:

• Chronic Kidney Disease (CKD) — a gradual loss of kidney function over time, most commonly caused by diabetes or high blood pressure
• Acute kidney injury (AKI) — a sudden decline in kidney function, often following illness, dehydration, surgery, or certain medications
• Proteinuria or haematuria — protein or blood detected in the urine on routine testing
• Kidney stones — particularly recurrent stones or complex cases
• Glomerulonephritis — inflammation of the kidney’s filtering units
• Polycystic kidney disease (PKD) — an inherited condition causing cysts in the kidneys
• Hypertension resistant to standard treatment — kidneys play a central role in blood pressure regulation
• Pre-dialysis planning or transplant evaluation — for advanced CKD approaching end-stage

2. What to Expect at Your First Nephrology Appointment

Your first appointment will typically involve a detailed review of your blood and urine test history, a physical examination (including blood pressure, fluid status, and any signs of kidney disease such as swelling in the legs), and a discussion of your medical history, medications, and lifestyle.

Your nephrologist may order additional tests at or after the appointment, including:

• A kidney ultrasound to check the size, structure, and any abnormalities of both kidneys
• A 24-hour urine collection to measure protein excretion more accurately than a spot test
• Additional blood markers including phosphate, parathyroid hormone (PTH), bicarbonate, and haemoglobin
• In some cases, a kidney biopsy — a minor procedure to obtain a tissue sample for diagnosis

The appointment is typically 20 to 45 minutes. Your nephrologist may not provide a full management plan at the first visit if they are waiting for additional test results.

3. Track Your Blood Pressure Before Your Visit

Blood pressure control is central to nephrology care. High blood pressure is both a cause and a consequence of kidney disease, and your nephrologist will want to see how your BP is running outside the clinic environment — not just a single reading taken in the waiting room.

Track your blood pressure twice daily for at least two weeks before your appointment — once in the morning before medication, and once in the evening. Record the date, time, both readings, and your heart rate. Sit quietly for five minutes before each measurement and use the same arm each time.

A home monitor with built-in memory makes this practical and shareable — the Greater Goods Blood Pressure Monitor (available on Amazon.sg) stores up to 60 timestamped readings, which you can show directly from your phone or print for your nephrologist. (Affiliate link — we may earn a small commission at no extra cost to you.)

Also track your daily fluid intake and urine output if your nephrologist or GP has asked you to monitor these — changes in output volume are a key clinical indicator in kidney disease management.

4. Questions to Ask Your Nephrologist

Write these down before your appointment:

• What is my current eGFR, and what does it mean for my kidney function?
• What is causing the change in my kidney function — and is it reversible?
• Which medications I am currently taking could be affecting my kidneys?
• What blood pressure target should I be aiming for at home?
• Do I need to make any changes to my diet — particularly regarding salt, protein, potassium, or phosphorus?
• How often should I have my kidney function retested?
• At what point would dialysis or a transplant become a consideration?
• Are there any signs or symptoms that should prompt me to seek urgent care before my next appointment?

If you have diabetes, also ask specifically how your blood sugar control is affecting your kidney function and what HbA1c target your nephrologist recommends.

5. What to Bring

Bring as complete a picture as possible:

• All kidney function blood tests — creatinine, eGFR (estimated Glomerular Filtration Rate), urea, electrolytes (sodium, potassium, bicarbonate)
• Urine test results — urinalysis, urine protein-to-creatinine ratio (UPCR), urine albumin-to-creatinine ratio (uACR), and any 24-hour urine collections
• Blood pressure log — at least two weeks of home readings
• Complete medication list — including NSAIDs (ibuprofen, naproxen), which are particularly relevant as they can worsen kidney function; contrast dyes used in recent scans; and any herbal or traditional medicines
• Imaging reports — kidney ultrasounds, CT scans, or MRIs previously performed
• Referral letter from your GP — including the specific reason for referral and a summary of your relevant medical history

6. CKD Staging — What the Numbers Mean

If you have been told you have Chronic Kidney Disease, your nephrologist will classify it by stage based on your eGFR:

• G1 (eGFR ≥ 90): Normal kidney function — CKD diagnosed based on other markers such as persistent protein in urine
• G2 (eGFR 60–89): Mildly reduced function
• G3a (eGFR 45–59): Mildly to moderately reduced
• G3b (eGFR 30–44): Moderately to severely reduced
• G4 (eGFR 15–29): Severely reduced — preparation for kidney replacement therapy typically begins here
• G5 (eGFR < 15): Kidney failure — dialysis or transplant required

CKD staging is not a linear trajectory — many people with Stage 3 CKD live for decades with stable kidney function when blood pressure and blood sugar are well managed.

7. Nephrology Care Across Regions

Singapore: Nephrology services are available at all major restructured hospitals including SGH (Department of Renal Medicine), NUH, TTSH, and KTPH. Singapore has one of the highest rates of end-stage kidney disease in the world, primarily driven by diabetes — early specialist involvement is actively encouraged. Medisave can be used for approved outpatient nephrology treatments. The National Kidney Foundation Singapore (NKF) provides subsidised dialysis services.

Australia: Nephrology referrals are Medicare-rebatable with a valid GP referral. Patients with CKD Stage 3b and above are typically managed by a nephrologist in a multidisciplinary kidney health clinic. The Kidney Health Australia patient support line (1800 454 363) provides additional resources for newly diagnosed patients.

United States: Nephrologists are typically involved from CKD Stage 3 onwards. Confirm insurance coverage for specialist visits and any procedures such as kidney biopsies or imaging. Medicare covers most nephrology-related services for patients with end-stage renal disease (ESRD) under a specific provision regardless of age.

Medical Disclaimer: Content on DoctorVisitPrep.com is for informational and educational purposes only. It is not medical advice and does not replace consultation with a qualified healthcare professional. Always consult your doctor for advice specific to your health situation. In a medical emergency, call emergency services immediately (995 SG · 911 US/CA · 000 AU · 111 NZ). Full disclaimer.