What does high BUN and Cystatin c mean in blood test?

High BUN and Cystatin c can be caused by numerous problems.

High levels of BUN and Cystatin c in the blood indicate a variety of health problems. If your blood BUN level is between 6 mg/dL to 20 mg/dL and the Cystatin c level is between 0.62 mg/dL to 1.03 mg/L, then your body does not have any underlying health problems. But if BUN and Cystatin c levels exceed these levels, you should see a doctor immediately.

Normal BUN range : 6 - 20 mg/dL

Age-wise ideal BUN level in blood:
Age Ideal BUN value
<5 years 6.082
5-10 years 6.165
10-15 years 6.249
15-20 years 6.334
20-25 years 6.42
25-30 years 6.507
30-35 years 6.595
35-40 years 6.685
40-45 years 6.776
45-50 years 6.868
50-55 years 6.961
55-60 years 7.056
60-70 years 7.152
70-80 years 7.249
80-90 years 7.348
90-100 years 7.448
>100 years 7.549

If you want your blood test report to be interpreted by BUN specialist, then you can upload your report. Our BUN expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

Your BUN result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High BUN

Click here to know Symptoms of High Cystatin c

Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results

Can Low or High BUN cause Heart Attack? Click here to know

Normal Cystatin c range : 0.62 - 1.03 mg/L

Age-wise ideal Cystatin c level in blood:
Age Ideal Cystatin c value
<5 years 0.628
5-10 years 0.637
10-15 years 0.646
15-20 years 0.655
20-25 years 0.664
25-30 years 0.673
30-35 years 0.682
35-40 years 0.691
40-45 years 0.7
45-50 years 0.71
50-55 years 0.72
55-60 years 0.73
60-70 years 0.74
70-80 years 0.75
80-90 years 0.76
90-100 years 0.77
>100 years 0.78

Click here to know Symptoms of High BUN

Click here to know Symptoms of High Cystatin c

Can Low or High BUN cause Heart Attack? Click here to know

Click here to upload your blood test report

Click here to consult a doctor for your Low BUN problem

High BUN and Cystatin c levels in the blood can cause a number of health problems. Your GP may recommend follow-up tests to get an important picture of your overall health and well-being. If the results are greater than 20 mg/dL for BUN and more than 1.03 mg/L for Cystatin c, you may also need some follow-up tests that will help detect the underlying disease early.

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How is a blood test performed in the lab?

Depending on the symptoms you are experiencing, your doctor may order a BUN and Cystatin c test. In most hospitals BUN and Cystatin c results can be obtained within three to six hours after blood is taken. The blood is usually drawn from a vein on the inside of the elbow or the back of the hand. Drink plenty of water before your appointment. If you experience any symptoms that you are concerned about are out of the ordinary, call your doctor immediately.

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Click here to consult a doctor for your Low BUN problem

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