Is Serum Creatinine 138 high, normal or dangerous? What does Serum Creatinine level 138 mean?

📅 Medical Review Date: February 17, 2026

Your Serum Creatinine level of 138 is a High Serum Creatinine level.

High Serum Creatinine levels may indicate underlying health problems. The normal range is typically between 44 umol/L and 97 umol/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 Creatinine range for men is :44 - 97 umol/L

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

Age	Ideal Serum Creatinine value
<5 years	44.607
5-10 years	45.223
10-15 years	45.847
15-20 years	46.48
20-25 years	47.121
25-30 years	47.771
30-35 years	48.43
35-40 years	49.098
40-45 years	49.776
45-50 years	50.463
50-55 years	51.159
55-60 years	51.865
60-70 years	52.581
70-80 years	53.307
80-90 years	54.043
90-100 years	54.789
>100 years	55.545

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

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Normal range of Serum Creatinine found among women :44-97 umol/L

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

Age	Ideal Serum Creatinine value
<5 years	44.625
5-10 years	45.259
10-15 years	45.902
15-20 years	46.554
20-25 years	47.216
25-30 years	47.887
30-35 years	48.568
35-40 years	49.258
40-45 years	49.958
45-50 years	50.668
50-55 years	51.388
55-60 years	52.118
60-70 years	52.859
70-80 years	53.61
80-90 years	54.372
90-100 years	55.145
>100 years	55.929

If you take a Serum Creatinine blood test and the results are not in the normal range (44-97 umol/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 Creatinine Test Is Done :

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

Medical References

• Mayo Clinic – Creatinine test
• MedlinePlus – Creatinine Test
• Cleveland Clinic – Creatinine Clearance Test: Purpose, Levels & Results
• WebMD – Creatinine and Creatinine Clearance Blood Tests