Creatinine (CREA) with eGFR from blood serum

Creatinine Test - Kidney Function Assessment

The test measures creatinine concentration, a byproduct of protein and amino acid metabolism. Its daily excretion depends on the patient's muscle mass, sex, overall health, age, and diet. Creatinine concentration is calculated per kilogram of body weight and serves as an indicator of kidney function. Creatinine is almost 100% excreted by the kidneys, making its measurement in the blood an effective diagnostic marker, providing important information about kidney health and function.

When to Perform the Test?

The test is performed to assess the health and function of the patient's kidneys.

Disease Entities

For creatinine (CREA) with eGFR from blood serum, disease entities are dependent on the concentration of this compound in the blood. Causes of increased creatinine levels include acute kidney failure, chronic kidney failure, pregnancy, diabetes, and certain medications. Causes of decreased creatinine levels include muscle mass loss due to diseases like muscular dystrophy, specific kidney diseases, and general body wasting.

Symptoms

Creatinine (CREA) measurement with eGFR from blood serum is performed when symptoms such as fever, nausea, vomiting, general malaise, swelling of the lower limbs, pain in the kidney area (lower back), hematuria/microscopic hematuria, and pain or burning during urination are observed.