What causes high Direct LDL cholesterol and low FT4 thyroid?

High Direct LDL cholesterol and low FT4 thyroid can be caused by many reasons.

If your Direct LDL cholesterol is in between 40 mg/dL and 100 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 Direct LDL cholesterol 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 Direct LDL cholesterol : 40 - 100 mg/dL

Ideal values of Direct LDL cholesterol depending on age :

Age	Ideal Direct LDL cholesterol value
<5 years	5.088
5-10 years	5.177
10-15 years	5.268
15-20 years	5.36
20-25 years	5.454
25-30 years	5.549
30-35 years	5.646
35-40 years	5.745
40-45 years	5.846
45-50 years	5.948
50-55 years	6.052
55-60 years	6.158
60-70 years	6.266
70-80 years	6.376
80-90 years	6.488
90-100 years	6.602
>100 years	6.718

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

If you want your blood test report to be interpreted by Direct LDL cholesterol specialist, then you can upload your report. Our Direct LDL cholesterol expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

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Direct LDL cholesterol treatment - Click to read 10 GOLDEN ARTICLES on Direct LDL cholesterol

Some examples of conditions that increase LDL cholesterol levels include:

• Lupus
• Chronic kidney disease
• Diabetes
• Familial hypercholesterolemia
• Hypothyroidism

If you want your blood test report to be interpreted by Direct LDL cholesterol specialist, you can upload your report. Our Direct LDL cholesterol expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

Normal range of FT4 thyroid : 0.89 - 1.76 ng/dL

Ideal values of FT4 thyroid depending on age :

Age	Ideal FT4 thyroid value
<5 years	0.90558
5-10 years	0.92143
10-15 years	0.93756
15-20 years	0.95397
20-25 years	0.97066
25-30 years	0.98765
30-35 years	1.00493
35-40 years	1.02252
40-45 years	1.04041
45-50 years	1.05862
50-55 years	1.07715
55-60 years	1.096
60-70 years	1.11518
70-80 years	1.1347
80-90 years	1.15456
90-100 years	1.17476
>100 years	1.19532

High Direct LDL cholesterol and low FT4 thyroid can be caused by a lot of reasons. If you take Direct LDL cholesterol and FT4 thyroid blood tests and the results are higher than 100 mg/dL for Direct LDL cholesterol 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 Direct LDL cholesterol and FT4 thyroid Tests Are Done :

If your doctor wants Direct LDL cholesterol and FT4 thyroid tests on you, you may need to go through these tests. During the Direct LDL cholesterol 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 Direct LDL cholesterol and FT4 thyroid Test reports by your pathologist.

Medical References

• NIH – Measuring LDL-cholesterol: What is the best way to do it?
• NIH – Seven direct methods for measuring HDL and LDL cholesterol compared with ultracentrifugation reference measurement procedures