What does high APTT and INR mean in blood test?

High APTT and INR can be caused by numerous problems.

High levels of APTT and INR in the blood indicate a variety of health problems. If your blood APTT level is between 22 seconds to 35 seconds and the INR level is between 0.9 seconds to 1.2 ratio, then your body does not have any underlying health problems. But if APTT and INR 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	22.412
5-10 years	22.832
10-15 years	23.26
15-20 years	23.696
20-25 years	24.14
25-30 years	24.592
30-35 years	25.053
35-40 years	25.522
40-45 years	26
45-50 years	26.487
50-55 years	26.983
55-60 years	27.489
60-70 years	28.004
70-80 years	28.529
80-90 years	29.064
90-100 years	29.609
>100 years	30.164

*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 INR range : 0.9 - 1.2 ratio

Age-wise ideal INR level in blood:

Age	Ideal INR value
<5 years	0.917
5-10 years	0.934
10-15 years	0.952
15-20 years	0.97
20-25 years	0.988
25-30 years	1.007
30-35 years	1.026
35-40 years	1.045
40-45 years	1.065
45-50 years	1.085
50-55 years	1.105
55-60 years	1.126
60-70 years	1.147
70-80 years	1.168
80-90 years	1.19
90-100 years	1.189
>100 years	1.188

High APTT and INR 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 1.2 ratio for INR, 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 INR test. In most hospitals APTT and INR 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.