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

*Ideal values ​​are calculated based on our database of patient records

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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

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.