Is APTT 77.2 high, normal or dangerous? What does APTT level 77.2 mean?

📅 Medical Review Date: March 12, 2026

Your APTT level of 77.2 is a High APTT level.

High 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	23.698
5-10 years	25.527
10-15 years	27.498
15-20 years	29.621
20-25 years	31.908
25-30 years	34.371
30-35 years	34.166
35-40 years	33.963
40-45 years	33.761
45-50 years	33.559
50-55 years	33.359
55-60 years	33.16
60-70 years	32.962
70-80 years	32.766
80-90 years	32.571
90-100 years	32.376
>100 years	34.875

*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 high 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	23.749
5-10 years	25.637
10-15 years	27.676
15-20 years	29.877
20-25 years	32.253
25-30 years	34.818
30-35 years	34.598
35-40 years	34.379
40-45 years	34.162
45-50 years	33.946
50-55 years	33.731
55-60 years	33.518
60-70 years	33.306
70-80 years	33.095
80-90 years	32.886
90-100 years	32.678
>100 years	32.471

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