Kidney Function Test

Check Your Kidney Health with a Simple Blood Test

What Is a Kidney Function Test?

A Kidney Function Test assesses how well your kidneys are filtering waste, balancing fluids, and regulating key minerals in your body. It involves a blood test (for markers like creatinine and urea) and sometimes a urine test (for protein or abnormalities).

The kidneys play a vital role in your overall health—but kidney disease often develops silently, with few symptoms in the early stages. Routine testing helps detect problems early, before they progress.

At Regis Medical, we offer quick, accurate kidney testing with doctor consultation and follow-up recommendations.

What’s Included in a Kidney Function Test?

Blood Test Components:

  • Creatinine – Measures waste product filtered by the kidneys
  • Urea – Reflects nitrogen waste in the blood
  • eGFR (Estimated Glomerular Filtration Rate) – Indicates how well your kidneys are filtering
  • Electrolytes – Sodium, Potassium, Chloride, Bicarbonate (for fluid balance and nerve function)

Optional Add-ons:

  • Urine Test (Urinalysis) – Detects protein, blood, or other abnormalities
  • Microalbumin Test – Sensitive test for early kidney damage in diabetics
  • Calcium and Phosphate – Related to kidney-related bone health

 Why Is Kidney Testing Important?

Chronic Kidney Disease (CKD) is common in Singapore, especially among adults with diabetes, hypertension, or high cholesterol. In early stages, kidney damage causes no symptoms—but once lost, kidney function cannot be fully restored.

You should consider testing if you:

  • Have diabetes or high blood pressure (part of regular monitoring) 
  • Have a family history of kidney disease 
  • Experience fatigue, leg swelling, frothy urine or frequent urination
  • Are on medications that may affect kidneys (e.g. painkillers, antibiotics, supplements)
  • Have had abnormal urine tests or blood pressure readings

Symptoms That May Indicate Kidney Problems

  • Swelling in ankles, feet, or face
  • Fatigue or shortness of breath
  • Foamy or bloody urine
  • Frequent urination, especially at night
  • High blood pressure
  • Nausea, poor appetite
  • Difficulty concentrating or mental fog

Don’t wait for symptoms—early testing allows for earlier lifestyle or treatment interventions.

Test Process and Turnaround

  • Sample type: Blood draw (recommended to send together with urine samples)
  • Fasting: Not required, unless combined with other panels
  • Duration: 10–15 minutes
  • Result time: Typically ready within 3 working days
  • Consultation: Includes doctor review, lifestyle tips, and referrals if needed

Kidney Function Test in Singapore

Test

Price (SGD)

Turnaround Time

Renal Panel (Albumin, Calcium, Glucose, Urea, Creatinine, Sodium, Potassium, Chloride, CO2 (Bicarbonate), eGFR.

$40

3 working days

Ultrasound Kidney*

$125

3 - 7 working days

Urine FEME (Full Examination & Microscopic Examination)

$15

3 working days

Urine Urine Microalbumin 

$50

3 working days

*Done at partner lab and centres

Related Tests & Panels

Test / Panel

Price (SGD)

Turnaround Time

Liver Function Test

$50

3 working days

Full Screening Packages

Stay on top of your health with our comprehensive health screening packages

Test / Panel

Price (SGD)

Turnaround Time

Essential Package

From $250

2-3 working days

Essential Plus Package

From $400

2-3 working days

Whatsapp Us Make an Appointment

*Prices listed were last updated on 1 July 2023. Prices may be subject to change. 

*Price does not include consultation fee and GST.

Book Your Kidney Function Test

Take control of your health with a quick, reliable test. Whether for peace of mind or chronic condition monitoring, we’re here to support you.

Finding Us

FAQ

Accessibility & Support

What is Regis Medical GP clinic’s locations and opening hours?

Regis Medical Holland Village is located at 255 Holland Avenue, Singapore 278983

Regis Medical Katong is located at 437 Joo Chiat Road, Singapore 427650

Click here to view our opening hours

Appointment

Can I just walk in for a Kidney Function test? 
Yes, you can. However, to avoid long waiting time, we strongly advise you to book your appointments in advance.
How do I book an appointment?   

To book an appointment at Regis Medical Holland Village, please call or whatsapp us 8118 5298

To book an appointment at Regis Medical Katong, please call or whatsapp us 9851 3728

What are Regis Medical’s cancellation and refund policy?  

You can only cancel or change your appointments up to 24 hours before your appointment. You will receive your refund within 3 working days. No refund will be issued for no shows and cancellations within 24 hours before your appointment. However, if you are feeling unwell on the day of the appointment, we allow patients who have their acute illness seen at Regis Medical to reschedule their appointment without extra cost.

This policy is subject to change.

Can I reschedule my appointment?  

Yes. You can reschedule your appointments. However, you need to reschedule your appointment at least 24 hours before your actual appointment time. If you are unwell on the day of the appointment, we will reschedule your appointment at no extra cost if you seek medical attention at our clinic (for non-emergencies only).

What happens if I miss my appointment?  
No refund will be issued for missed appointments.

Finance

What are the modes of payment accepted at Regis Medical?    
We accept Visa/Mastercard/Amex, PayNow, JCB, UnionPay and ApplePay.

General

Why are kidney function tests important?
Your kidneys filter waste and extra fluid from your blood. If they’re not working well, waste can build up, leading to high blood pressure, swelling, and long-term damage. Testing helps detect problems early—often before you feel unwell.
Who should get their kidney function tested?
  • Have high blood pressure or diabetes
  • Have a family history of kidney disease
  • Are on long-term medications that may affect the kidneys (like NSAIDs, some antibiotics)
  • Have swelling in your legs, foamy urine, or unexplained fatigue
What is a renal panel?

A renal panel is a group of blood tests that assess how well your kidneys are working. It typically measures:

  • Creatinine & eGFR: main markers of kidney filtering function
  • Blood urea nitrogen (BUN): another waste product level
  • Electrolytes (sodium, potassium, chloride, bicarbonate): to see how well your kidneys balance salts and acids
What does eGFR mean?

eGFR stands for estimated Glomerular Filtration Rate. It’s calculated from your creatinine, age, sex, and sometimes race, and gives an estimate of how well your kidneys filter waste.

  • Above 90: normal
  • 60–89: mild reduction (often age-related)
  • Below 60: may indicate chronic kidney disease (CKD), needing further assessment
Do I need to fast before a renal panel?
No fasting required for kidney renal panel test.
What is kidney ultrasound?

It’s a painless scan using sound waves to create images of your kidneys and bladder. It helps detect:

  • Kidney size & shape changes (like cysts or scarring)
  • Kidney stones
  • Blockages or swelling (hydronephrosis)
  • Some tumors
What happens if my renal panel is abnormal?
Our doctor will discuss the likely cause. If mild, they may just monitor it. If more concerning, you may need repeat tests, blood pressure control, lifestyle changes, or a referral to a kidney specialist.
Can kidney disease be reversed?
Early kidney problems can often be stabilised or slowed by managing blood pressure, blood sugar, diet, and avoiding certain medications. Advanced damage can’t usually be reversed, which is why early detection is so important.
How often should I check my kidney function?
If you’re healthy, every 1–2 years is enough. If you have diabetes, high blood pressure, or past kidney issues, our Doctors recommend every 3–6 months.