What does high APTT and Prothrombin time mean in blood test?

High APTT and Prothrombin time can be caused by numerous problems.

High levels of APTT and Prothrombin time in the blood indicate a variety of health problems. If your blood APTT level is between 22 seconds to 35 seconds and the Prothrombin time level is between 12 seconds to 16 seconds, then your body does not have any underlying health problems. But if APTT and Prothrombin time 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	22.411
5-10 years	22.83
10-15 years	23.256
15-20 years	23.69
20-25 years	24.133
25-30 years	24.584
30-35 years	25.043
35-40 years	25.511
40-45 years	25.988
45-50 years	26.473
50-55 years	26.968
55-60 years	27.472
60-70 years	27.985
70-80 years	28.508
80-90 years	29.041
90-100 years	29.583
>100 years	30.136

*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 Prothrombin time range : 12 - 16 seconds

Age-wise ideal Prothrombin time level in blood:

Age	Ideal Prothrombin time value
<5 years	12.224
5-10 years	12.452
10-15 years	12.685
15-20 years	12.922
20-25 years	13.163
25-30 years	13.409
30-35 years	13.659
35-40 years	13.914
40-45 years	14.174
45-50 years	14.439
50-55 years	14.709
55-60 years	14.984
60-70 years	15.264
70-80 years	15.549
80-90 years	15.839
90-100 years	15.834
>100 years	15.829

High APTT and Prothrombin time 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 16 seconds for Prothrombin time, 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 Prothrombin time test. In most hospitals APTT and Prothrombin time 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.