Is APTT 26.6 normal, high or low? What does APTT level 26.6 mean?

📅 Medical Review Date: May 2, 2026

Your APTT level of 26.6 is a Normal APTT level.

Normal APTT levels may indicate underlying health problems. The normal range is typically between 22 seconds and 35 seconds. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal APTT range for men is :22 - 35 seconds

Ideal values of APTT depending on age (male) :

Age	Ideal APTT value
<5 years	22.585
5-10 years	23.186
10-15 years	23.803
15-20 years	24.436
20-25 years	25.086
25-30 years	25.753
30-35 years	26.438
35-40 years	27.141
40-45 years	27.863
45-50 years	28.604
50-55 years	29.365
55-60 years	30.146
60-70 years	30.948
70-80 years	31.771
80-90 years	32.616
90-100 years	33.484
>100 years	34.375

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

Get Advice via Email : Send us your blood test report, and our APTT experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides APTT, please include those too—an accurate diagnosis often requires a full view of all abnormalities. 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

Receive world-class medical opinion about your normal APTT levels over email.Upload blood test report now

Normal range of APTT found among women :22-35 seconds

Ideal values of APTT depending on age (female) :

Age	Ideal APTT value
<5 years	22.603
5-10 years	23.222
10-15 years	23.858
15-20 years	24.512
20-25 years	25.184
25-30 years	25.874
30-35 years	26.583
35-40 years	27.311
40-45 years	28.059
45-50 years	28.828
50-55 years	29.618
55-60 years	30.429
60-70 years	31.263
70-80 years	32.12
80-90 years	33
90-100 years	33.904
>100 years	34.833

If you take a APTT blood test and the results are not in the normal range (22-35 seconds), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the APTT Test Is Done :

When your doctor orders a APTT test, it involves a straightforward blood draw to measure your APTT levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your APTT test results are usually available within a few hours.

Medical References

• WebMD – Activated Partial Thromboplastin Time (APTT) Test
• Cleveland Clinic – Partial Thromboplastin Time (PTT) Test
• NIH – Solutions to Establishing and Verifying Normal Reference Intervals and Assessing APTT Reagents