A bad creatinine level is generally considered to be anything over 1.3 mg/dL, but this can vary depending on factors like age, race, gender, and body size. High creatinine levels are usually a sign that your kidneys aren't working as well as they should.
However, it's important to remember that high creatinine levels don't always mean you have a kidney problem. They can also be caused by things like:
- Dehydration
- Muscle disorders and injuries
- Certain medications
If you have a high creatinine level, your doctor will likely want to do more tests to determine the cause. They may also recommend lifestyle changes or treatment to help improve your kidney function.