What does high BUN and TIBC mean in blood test?

High BUN and TIBC can be caused by numerous problems.

High levels of BUN and TIBC 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 TIBC level is between 250 mg/dL to 450 mcg/dL, then your body does not have any underlying health problems. But if BUN and TIBC 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	6.25
15-20 years	6.336
20-25 years	6.423
25-30 years	6.511
30-35 years	6.6
35-40 years	6.69
40-45 years	6.782
45-50 years	6.875
50-55 years	6.969
55-60 years	7.065
60-70 years	7.162
70-80 years	7.26
80-90 years	7.36
90-100 years	7.461
>100 years	7.563

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

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Normal TIBC range : 250 - 450 mcg/dL

Age-wise ideal TIBC level in blood:

Age	Ideal TIBC value
<5 years	253.428
5-10 years	256.902
10-15 years	260.424
15-20 years	263.994
20-25 years	267.613
25-30 years	271.282
30-35 years	275.001
35-40 years	278.771
40-45 years	282.593
45-50 years	286.467
50-55 years	290.394
55-60 years	294.375
60-70 years	298.411
70-80 years	302.502
80-90 years	306.649
90-100 years	310.853
>100 years	315.115

High BUN and TIBC 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 450 mcg/dL for TIBC, 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 TIBC test. In most hospitals BUN and TIBC 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.