What causes high BUN and low FT4 thyroid?

High BUN and low FT4 thyroid can be caused by many reasons.

If your BUN is in between 6 mg/dL and 20 mg/dL and your FT4 thyroid is in between 0.89 ng/dL and 1.76 ng/dL then you need not worry as these are the normal ranges for BUN and FT4 thyroid respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Normal range of BUN : 6 - 20 mg/dL

Ideal values of BUN depending on age :
Age Ideal BUN value
<5 years 6.063
5-10 years 6.127
10-15 years 6.191
15-20 years 6.256
20-25 years 6.322
25-30 years 6.388
30-35 years 6.455
35-40 years 6.523
40-45 years 6.591
45-50 years 6.66
50-55 years 6.73
55-60 years 6.801
60-70 years 6.872
70-80 years 6.944
80-90 years 7.017
90-100 years 7.091
>100 years 7.165

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 Low FT4 thyroid

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 range of BUN found among women : - mg/dL

Ideal values of FT4 thyroid depending on age :
Age Ideal FT4 thyroid value
<5 years 0.89935
5-10 years 0.90879
10-15 years 0.91833
15-20 years 0.92797
20-25 years 0.93771
25-30 years 0.94756
30-35 years 0.95751
35-40 years 0.96756
40-45 years 0.97772
45-50 years 0.98799
50-55 years 0.99836
55-60 years 1.00884
60-70 years 1.01943
70-80 years 1.03013
80-90 years 1.04095
90-100 years 1.05188
>100 years 1.06292

Click here to know Symptoms of High BUN

Click here to know Symptoms of Low FT4 thyroid

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 low FT4 thyroid can be caused by a lot of reasons. If you take BUN and FT4 thyroid blood tests and the results are higher than 20 mg/dL for BUN and lower than 0.89 ng/dL for FT4 thyroid, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the BUN and FT4 thyroid Tests Are Done :

If your doctor wants BUN and FT4 thyroid tests on you, you may need to go through these tests. During the BUN and FT4 thyroid blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your BUN and FT4 thyroid Test reports by your pathologist.

Click here to upload your blood test report

Click here to consult a doctor for your Low BUN problem

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