What causes high TSH 3 and low TIBC?

High TSH 3 and low TIBC can be caused by many reasons.

If your TSH 3 is in between 0.55 uIU/mL and 4.78 uIU/mL and your TIBC is in between 250 mcg/dL and 450 mcg/dL then you need not worry as these are the normal ranges for TSH 3 and TIBC respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can increase or decrease TSH 3 levels include:

• Liver disease
• Autoimmune disease
• A non-functioning thyroid gland
• Thyroiditis
• Diabetes

Normal range of TSH 3 : 0.55 - 4.78 uIU/mL

Ideal values of TSH 3 depending on age :

Age	Ideal TSH 3 value
<5 years	0.57
5-10 years	0.591
10-15 years	0.613
15-20 years	0.636
20-25 years	0.66
25-30 years	0.684
30-35 years	0.709
35-40 years	0.735
40-45 years	0.762
45-50 years	0.79
50-55 years	0.819
55-60 years	0.849
60-70 years	0.88
70-80 years	0.913
80-90 years	0.947
90-100 years	0.982
>100 years	1.018

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

Normal range of TIBC : 250 - 450 mcg/dL

Ideal values of TIBC depending on age :

Age	Ideal TIBC value
<5 years	259.275
5-10 years	268.894
10-15 years	278.87
15-20 years	289.216
20-25 years	299.946
25-30 years	311.074
30-35 years	322.615
35-40 years	334.584
40-45 years	346.997
45-50 years	359.871
50-55 years	373.222
55-60 years	387.069
60-70 years	401.429
70-80 years	416.322
80-90 years	431.768
90-100 years	447.787
>100 years	447.171

High TSH 3 and low TIBC can be caused by a lot of reasons. If you take TSH 3 and TIBC blood tests and the results are higher than 4.78 uIU/mL for TSH 3 and lower than 250 mcg/dL for TIBC, 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 TSH 3 and TIBC Tests Are Done :

If your doctor wants TSH 3 and TIBC tests on you, you may need to go through these tests. During the TSH 3 and TIBC 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 TSH 3 and TIBC Test reports by your pathologist.

Medical References

• MedlinePlus – TSH (Thyroid-stimulating hormone) Test
• Cleveland Clinic – TSH (Thyroid-Stimulating Hormone) Levels: Symptoms
• Mayo Clinic – Hypothyroidism (underactive thyroid) - Diagnosis and treatment
• NIH – Thyroid Tests
• NIH – How to interpret thyroid function tests