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

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

Your APTT result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High APTT

Click here to know Symptoms of High INR

Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results

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

Click here to know Symptoms of High APTT

Click here to know Symptoms of High INR

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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.

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