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Kidney Function

Up to two-thirds of people with kidney disease (as many as one in 15 adults) are unaware that they have this common condition. Did you know:

  • Mild or moderate kidney disease can be treated with medication to help slow down the damage
  • Early treatment for kidney disease usually improves prognosis
  • Kidney disease usually has no symptoms until it’s at a serious stage
  • It’s forecast that transplants or need for dialysis will increase by 50% over the next 10 years
  • Your risks increase if you have diabetes or high blood pressure

Your kidney function tests

At your screening we will take a small sample of blood for analysis at our laboratory. Your readings will cover sodium, urea, Creatinine and eGFR (estimated glomerular filtration rate).


Sodium is important for blood pressure maintenance and fluid balance in your body.


Urea is a waste product produced as you digest protein and is removed by the kidneys. Raised levels in the blood may reflect impaired kidney function. Urea levels can naturally increase with age and also the amount of protein in your diet.


Creatinine is a chemical waste product produced by your muscles. Like Urea, raised levels in your blood may reflect impaired kidney function as your kidneys are unable to filter this waste product from your body.

eGFR (estimated glomerular filtration rate)

eGFR rate is a calculation of the amount of blood filtered through your kidneys over a period of time reflecting how efficiently they are working.

How to prepare

You do not need to fast prior to your test but you are advised to wear loose fitting clothing as we will need to take a blood sample.

Which packages include this Health Check?

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