Understanding Your Kidney Blood Test

Thorough blood tests can help you and your healthcare team understand what is going on inside your body and whether or not your treatment plan is working well as it should.

Below are the lab tests that we monitor regularly here at Renal Team Singapore. Please take note that the target range unit set here may be different from other hospitals and labs.

Anaemia Management Lab
Do I have enough red blood cells and iron to feel my best?
Name of Test Target Range
HB 11-12 g/dl
HCT 33-36%
Ferritin ≥100 and <800µg/ml
TSAT (Transferrin Saturation) 20-50%
Bone Disease Management
Am I at risk of developing renal bone disease?
Calcium (Serum) 8.8-10.4 mg/dl or 2.2-2.6mmol/L
Phosphate (Inorganic) < 5.5 mg/dL or 1.82mmol/L
Calcium  Phosphate Product          (Ca x PO) <60
Intact Parathyroid Hormone (iPTH) 15-30 pmol/L or 150-300pg/ml
Electrolyte Management
How are my muscles and nerves working?
Sodium 135-145 mEq/L
Potassium 3.5-5.5 mmol/L
Bicarbonate >20 and <24 mmol/L (Pre-dx)
Diabetic Management
How is my diabetic risk and is it well-controlled?
Blood Glucose Level >4.0 and <9.0 mmol/L or <180 mg/dL
HbA1c 4.6-6.3%
Dialysis Adequacy Management
How am I responding to dialysis?
Urea Reduction Ratio (URR) >65% (for Haemodialysis)
Creatinine Clearance Ratio (CCR) >60% (for CAPD)>63% (for APD)
Kt/V for Haemodialysis >1.4 ( for non-diabetic dialysis patient)                        >1.6 (for diabetic dialysis patient)
Kt/V for Peritoneal Dialysis >2.0 /week (for CAPD)>2.1 /week (for APD)
Nutrition Management
What is my nutrition status?
Albumin ≥35g/L
Creatinine (pre-dialysis) variable on body mass & sex
Creatinine (post-dialysis) <5.0 mg/dL or <442 µmol/L
Total Cholesterol 200-240 mg/dL  or 5.1-6.1 mmol/ L
HDL Cholesterol 40-60 mg /dL or 1.0-2.0 mmol/L
LDL Cholesterol <130 mg/dL  or <3.334mmol/L
Triglycerides <200 mg/dL or <1.89mmol/L
Total Cholesterol/HDL ratio 3.5-4.5
Uric acid 3.0 – 7.0 mg/dL
Virology Management
What is my virology status on a routinary basis?
(These virology tests are conducted routinely and is a requirement under Singapore’s Ministry of Health Infection Control Guidelines)
Hbs Ag Negative
Anti HBS >10
Anti HCV Negative
Anti HIV Negative

You can use this lab test reference guide by:

  • Asking your doctor, nurse, and dietician to review the target range for each test and make sure that it is right for your need.
  • Recording down the results of each lab test so that you can see your progress over time.
  • Asking questions you might have regarding results that are outside the target range.
    • What might be causing your result to be out of the target range?
    • What can be done to bring it back into the target range?
    • Are there any specific things you can do to help improve this result?

Understanding your lab test will enable you to manage your haemodialysis more effectively. By taking an active role in your kidney dialysis treatments, the fears and anxieties that may be bothering you will slowly be reduced.

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