Is Serum Calcium 3.67 high, normal or dangerous? What does Serum Calcium level 3.67 mean?

📅 Medical Review Date: February 12, 2026

Your Serum Calcium level of 3.67 is a High Serum Calcium level.

High Serum Calcium levels may indicate underlying health problems. The normal range is typically between 2.12 mmol/L and 2.62 mmol/L. 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 Serum Calcium range for men is :2.12 - 2.62 mmol/L

Ideal values of Serum Calcium depending on age (male) :

Age	Ideal Serum Calcium value
<5 years	2.198
5-10 years	2.279
10-15 years	2.363
15-20 years	2.45
20-25 years	2.54
25-30 years	2.536
30-35 years	2.533
35-40 years	2.53
40-45 years	2.527
45-50 years	2.62
50-55 years	2.616
55-60 years	2.612
60-70 years	2.609
70-80 years	2.606
80-90 years	2.603
90-100 years	2.6
>100 years	2.596

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

Get Advice via Email : Send us your blood test report, and our Serum Calcium 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 Serum Calcium, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

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Normal range of Serum Calcium found among women :2.12-2.62 mmol/L

Ideal values of Serum Calcium depending on age (female) :

Age	Ideal Serum Calcium value
<5 years	2.2
5-10 years	2.283
10-15 years	2.369
15-20 years	2.459
20-25 years	2.552
25-30 years	2.548
30-35 years	2.544
35-40 years	2.54
40-45 years	2.536
45-50 years	2.533
50-55 years	2.53
55-60 years	2.527
60-70 years	2.524
70-80 years	2.619
80-90 years	2.615
90-100 years	2.611
>100 years	2.608

If you take a Serum Calcium blood test and the results are not in the normal range (2.12-2.62 mmol/L), 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 Serum Calcium Test Is Done :

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

Medical References

• Cleveland Clinic – Calcium Blood Test: What It Is & Results
• MedlinePlus – Calcium Blood Test
• WebMD – Calcium Blood Test: What It Is, Why It is Done, Results
• Mayo Clinic – Coronary calcium scan