What causes high Calcium and low APTT?

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

If your Calcium is in between 8.5 mg/dL and 10.1 mg/dL and your APTT is in between 22 seconds and 35 seconds then you need not worry as these are the normal ranges for Calcium and APTT 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 Calcium : 8.5 - 10.1 mg/dL

Ideal values of Calcium depending on age :

Age	Ideal Calcium value
<5 years	8.636
5-10 years	8.774
10-15 years	8.914
15-20 years	9.057
20-25 years	9.202
25-30 years	9.349
30-35 years	9.499
35-40 years	9.651
40-45 years	9.805
45-50 years	9.962
50-55 years	9.959
55-60 years	9.956
60-70 years	9.953
70-80 years	9.95
80-90 years	9.947
90-100 years	9.944
>100 years	9.941

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

If you want your blood test report to be interpreted by Calcium specialist, then you can upload your report. Our Calcium 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 Calcium levels include:

• Overactive parathyroid glands
• Some Medications like thiazide diuretics
• Kidney failure.
• Lung diseases
• Taking too much of vitamin D supplements

If you want your blood test report to be interpreted by Calcium specialist, you can upload your report. Our Calcium 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 APTT : 22 - 35 seconds

Ideal values of APTT depending on age :

Age	Ideal APTT value
<5 years	22.352
5-10 years	22.71
10-15 years	23.073
15-20 years	23.442
20-25 years	23.817
25-30 years	24.198
30-35 years	24.585
35-40 years	24.978
40-45 years	25.378
45-50 years	25.784
50-55 years	26.197
55-60 years	26.616
60-70 years	27.042
70-80 years	27.475
80-90 years	27.915
90-100 years	28.362
>100 years	28.816

High Calcium and low APTT can be caused by a lot of reasons. If you take Calcium and APTT blood tests and the results are higher than 10.1 mg/dL for Calcium and lower than 22 seconds for APTT, 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 Calcium and APTT Tests Are Done :

If your doctor wants Calcium and APTT tests on you, you may need to go through these tests. During the Calcium and APTT 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 Calcium and APTT Test reports by your pathologist.