What is the purpose of this test?
The Creatinine Serum Test with eGFR is a blood test that provides important information about kidney function. The test measures the level of creatinine in the blood, a waste product produced by the muscles and excreted by the kidneys. When the kidneys function properly, they remove creatinine from the blood and excrete it in the urine. However, if the kidneys are not working as well as they should, the level of creatinine in the blood will rise.
The eGFR is a calculation that takes into account the creatinine level, age, gender, and race to estimate how well the kidneys are filtering blood. The result of the eGFR test is expressed in units of milliliters per minute per 1.73 square meters of body surface area. This calculation allows doctors to determine how well the kidneys are working and to monitor kidney function over time.
The Creatinine Serum Test with eGFR is an important tool for detecting kidney disease, monitoring kidney function in people with chronic kidney disease or other conditions that can affect the kidneys, and helping to guide treatment decisions. The test is often used in conjunction with other tests, such as urine tests, to provide a more complete picture of kidney function. Early detection of kidney disease is crucial for effective treatment, and the Creatinine Serum Test with eGFR is an important tool in achieving this goal.
What factors may cause elevated creatinine levels?
The following factors may contribute to elevated creatinine levels.
- Reduced blood flow to the kidneys
- Dehydration
- High protein diet
- Kidney damage or disease
- Certain medications, such as NSAIDs and ACE inhibitors
- Rhabdomyolysis (breakdown of muscle tissue)
- Excessive exercise
- Urinary tract obstruction
- Ingestion of large amounts of creatine supplements
When should I order a Creatinine Serum Test?
Individuals may order a Creatinine Serum Test if they have an increased risk of developing kidney disease. Individuals with one or more of the following conditions are more likely to develop kidney disease:
- Diabetes
- High blood pressure
- Obesity
- Family history of kidney disorder
- Heart disease
- 50 years old or older
- Smoking
- Swelling in the feet or ankles
- Urinary changes
- Loss of appetite
- Fatigue
- Puffiness around the eyes
Sample Report
Test Code(s):
001370, 375
Preparation:
No special preparation is required.
Test Results:
2-3 days. May take longer based on weather, holiday, or lab delays.
