Serum- oder Plasmakreatininkonzentration (Massenkonzentration)

Why This Test Matters

Creatinine is a byproduct of muscle breakdown and is filtered by your kidneys. High levels may indicate reduced kidney function, while low levels could suggest dehydration or other conditions. Your doctor may order this test to monitor kidney health, especially if you have diabetes, high blood pressure, or a history of kidney issues.

What to Expect Before the Test

No special preparation is needed, but you may be asked to fast for 8–12 hours before the test if it’s part of a broader panel. Drink plenty of water the day before to ensure accurate results. Avoid heavy exercise or strenuous activity 24 hours prior.

What Happens During the Test

A healthcare provider will draw blood from a vein in your arm. The process is quick and usually painless. If you’re nervous, let your provider know—they can help with positioning or numbing the area.

What the Results Mean

Results are compared to a baseline or reference range provided by your lab. Abnormally high levels may signal kidney problems, while very low levels might indicate dehydration or other metabolic issues. Your doctor will interpret results in the context of your overall health and medical history.