What causes high APTT and low Phosphorus?

High APTT and low Phosphorus can be caused by many reasons.

If your APTT is in between 22 seconds and 35 seconds and your Phosphorus is in between 2.5 mg/dL and 4.5 mg/dL then you need not worry as these are the normal ranges for APTT and Phosphorus respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Normal range of APTT : 22 - 35 seconds

Ideal values of APTT depending on age :

Age	Ideal APTT value
<5 years	22.385
5-10 years	22.776
10-15 years	23.174
15-20 years	23.579
20-25 years	23.991
25-30 years	24.41
30-35 years	24.837
35-40 years	25.271
40-45 years	25.713
45-50 years	26.162
50-55 years	26.619
55-60 years	27.084
60-70 years	27.557
70-80 years	28.039
80-90 years	28.529
90-100 years	29.028
>100 years	29.535

*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 range of Phosphorus : 2.5 - 4.5 mg/dL

Ideal values of Phosphorus depending on age :

Age	Ideal Phosphorus value
<5 years	2.544
5-10 years	2.588
10-15 years	2.633
15-20 years	2.679
20-25 years	2.726
25-30 years	2.774
30-35 years	2.822
35-40 years	2.871
40-45 years	2.921
45-50 years	2.972
50-55 years	3.024
55-60 years	3.077
60-70 years	3.131
70-80 years	3.186
80-90 years	3.242
90-100 years	3.299
>100 years	3.357

High APTT and low Phosphorus can be caused by a lot of reasons. If you take APTT and Phosphorus blood tests and the results are higher than 35 seconds for APTT and lower than 2.5 mg/dL for Phosphorus, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the APTT and Phosphorus Tests Are Done :

If your doctor wants APTT and Phosphorus tests on you, you may need to go through these tests. During the APTT and Phosphorus blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your APTT and Phosphorus Test reports by your pathologist.

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