What does high APTT and D Dimer mean in blood test?

High APTT and D Dimer can be caused by numerous problems.

High levels of APTT and D Dimer in the blood indicate a variety of health problems. If your blood APTT level is between 22 seconds to 35 seconds and the D Dimer level is between 0 seconds to 0.51 ug/mL, then your body does not have any underlying health problems. But if APTT and D Dimer levels exceed these levels, you should see a doctor immediately.

Normal APTT range : 22 - 35 seconds

Age-wise ideal APTT level in blood:

Age	Ideal APTT value
<5 years	22.407
5-10 years	22.822
10-15 years	23.245
15-20 years	23.675
20-25 years	24.113
25-30 years	24.56
30-35 years	25.015
35-40 years	25.478
40-45 years	25.95
45-50 years	26.431
50-55 years	26.921
55-60 years	27.42
60-70 years	27.928
70-80 years	28.445
80-90 years	28.972
90-100 years	29.509
>100 years	30.056

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

If you want your blood test report to be interpreted by APTT specialist, then you can upload your report. Our APTT 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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Some examples of conditions that increase or decrease APTT levels include:

• Liver disease
• Vitamin K abnormality
• Decreased or defective factor I (fibrinogen), II (prothrombin), V or X
• Hemophilia A and hemophilia B
• Willebrand disease

If you want your blood test report to be interpreted by APTT specialist, you can upload your report. Our APTT 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 D Dimer range : 0 - 0.51 ug/mL

Age-wise ideal D Dimer level in blood:

Age	Ideal D Dimer value
<5 years	0.112
5-10 years	0.114
10-15 years	0.116
15-20 years	0.118
20-25 years	0.12
25-30 years	0.122
30-35 years	0.124
35-40 years	0.126
40-45 years	0.128
45-50 years	0.13
50-55 years	0.132
55-60 years	0.134
60-70 years	0.136
70-80 years	0.139
80-90 years	0.142
90-100 years	0.145
>100 years	0.148

High APTT and D Dimer 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 35 seconds for APTT and more than 0.51 ug/mL for D Dimer, 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 APTT and D Dimer test. In most hospitals APTT and D Dimer 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.