Serum Creatinine (with Electrolyte Profile)

Why This Test Is Done

Your healthcare provider may order this test to evaluate kidney function, check for kidney disease, monitor chronic conditions like diabetes or heart disease, or assess fluid and electrolyte imbalances. It may also be used during pregnancy or before certain surgeries.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if it involves blood drawing. Avoid strenuous activity or excessive fluid intake on the day of testing. Inform your provider about any medications or supplements you’re taking.

What the Test Involves

A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a brief pinch, but it usually doesn’t cause significant discomfort. The process takes about 5 minutes, and you can resume normal activities afterward.

What the Results Mean

High creatinine levels may indicate reduced kidney function, while low levels could suggest dehydration or other conditions. Electrolyte imbalances (e.g., low potassium or sodium) may signal kidney issues, heart problems, or other medical concerns. Your provider will interpret results in the context of your overall health.