Is Serum Creatinine 128 high, normal or dangerous? What does Serum Creatinine level 128 mean?

📅 Medical Review Date: February 19, 2026

Your Serum Creatinine level of 128 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	44.563
5-10 years	45.133
10-15 years	45.711
15-20 years	46.296
20-25 years	46.889
25-30 years	47.489
30-35 years	48.097
35-40 years	48.713
40-45 years	49.337
45-50 years	49.969
50-55 years	50.609
55-60 years	51.257
60-70 years	51.913
70-80 years	52.577
80-90 years	53.25
90-100 years	53.932
>100 years	54.622

*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	44.58
5-10 years	45.168
10-15 years	45.763
15-20 years	46.366
20-25 years	46.977
25-30 years	47.596
30-35 years	48.224
35-40 years	48.86
40-45 years	49.504
45-50 years	50.157
50-55 years	50.818
55-60 years	51.488
60-70 years	52.167
70-80 years	52.855
80-90 years	53.552
90-100 years	54.258
>100 years	54.973

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