What does high BUN and APTT mean in blood test?

High BUN and APTT can be caused by numerous problems.

High levels of BUN and APTT 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 APTT level is between 22 mg/dL to 35 seconds, then your body does not have any underlying health problems. But if BUN and APTT 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 APTT

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 APTT range : 22 - 35 seconds

Age-wise ideal APTT level in blood:
Age Ideal APTT value
<5 years 22.299
5-10 years 22.602
10-15 years 22.909
15-20 years 23.221
20-25 years 23.537
25-30 years 23.857
30-35 years 24.181
35-40 years 24.51
40-45 years 24.843
45-50 years 25.181
50-55 years 25.523
55-60 years 25.87
60-70 years 26.222
70-80 years 26.579
80-90 years 26.94
90-100 years 27.306
>100 years 27.677

Click here to know Symptoms of High BUN

Click here to know Symptoms of High APTT

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

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Click here to consult a doctor for your Low BUN problem

High BUN and APTT 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 35 seconds for APTT, 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 APTT test. In most hospitals BUN and APTT 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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