Serum Creatinine with Electrolyte Profile (Sodium, Potassium, Chloride)

Why This Test Matters for Kidney Health

Creatinine is a waste product from muscle metabolism that kidneys filter out. High levels may signal kidney problems, while electrolyte imbalances can affect heart rhythm, muscle function, or fluid retention. This test helps monitor both simultaneously.

What to Expect Before the Test

No special preparation is needed. You may eat and drink normally, but avoid heavy exercise or dehydration before testing. Your blood will be drawn from a vein, typically in your arm, and you may feel a brief pinch or slight discomfort.

Common Causes for This Test

Your doctor may order this test if you have symptoms like swelling, fatigue, confusion, or frequent urination. It’s also used for routine check-ups, monitoring chronic conditions (e.g., diabetes, heart disease), or evaluating kidney function after injury or illness.

What the Results Mean

Results show your creatinine level and electrolyte counts. While exact ranges vary by lab, abnormal values may indicate kidney issues or electrolyte disorders. Your doctor will interpret results in the context of your health history and symptoms.