What causes high Direct LDL cholesterol and low APTT?

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

If your Direct LDL cholesterol is in between 40 mg/dL and 100 mg/dL and your APTT is in between 22 seconds and 35 seconds then you need not worry as these are the normal ranges for Direct LDL cholesterol and APTT 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	5.178
10-15 years	5.269
15-20 years	5.362
20-25 years	5.456
25-30 years	5.552
30-35 years	5.65
35-40 years	5.749
40-45 years	5.85
45-50 years	5.953
50-55 years	6.058
55-60 years	6.165
60-70 years	6.274
70-80 years	6.384
80-90 years	6.496
90-100 years	6.61
>100 years	6.726

*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 APTT : 22 - 35 seconds

Ideal values of APTT depending on age :

Age	Ideal APTT value
<5 years	22.387
5-10 years	22.781
10-15 years	23.182
15-20 years	23.59
20-25 years	24.005
25-30 years	24.427
30-35 years	24.857
35-40 years	25.294
40-45 years	25.739
45-50 years	26.192
50-55 years	26.653
55-60 years	27.122
60-70 years	27.599
70-80 years	28.085
80-90 years	28.579
90-100 years	29.082
>100 years	29.594

High Direct LDL cholesterol and low APTT can be caused by a lot of reasons. If you take Direct LDL cholesterol and APTT blood tests and the results are higher than 100 mg/dL for Direct LDL cholesterol and lower than 22 seconds for APTT, 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 APTT Tests Are Done :

If your doctor wants Direct LDL cholesterol and APTT tests on you, you may need to go through these tests. During the Direct LDL cholesterol and APTT 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 APTT 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