Why is a creatinine blood test done?

The waste product produced by your muscle cells is creatinine. It’s usually found in the blood, urine, and tissues. Your doctor may want to test for creatinine levels if you have symptoms of kidney disease or you’ve recently had surgery on one of your kidneys. This is because creatinine can build up in the blood when there are problems with the filtering systems in your kidneys.

Though the creatinine test price is high it can tell about your creatinine levels and can tell your doctor a lot about your kidney health. Your muscle cells discharge a substance called creatinine as waste. Numerous factors can affect the amount of creatinine in your blood, including:

  • Muscle mass
  • Age and gender (younger people have higher levels)
  • Ethnicity (white people tend to have higher levels).

It is filtered out of your blood by the kidneys, which are responsible for removing creatinine from your body. Creatinine can be measured in either urine or blood samples.

Creatinine levels are affected by muscle mass, age, gender, and ethnicity. Creatinine is produced in the muscles of the body and excreted through the kidneys in urine. 

The amount of creatinine in your blood depends on how much you have in your urine, so your creatinine level can tell us how well your kidneys are working. A creatinine test can tell you whether your kidneys are working properly.

A kidney test can be done at the doctor’s office or in a lab. The examination measures kidney function and can help determine if you have kidney disease. Kidney tests are also used to monitor kidney function during treatment.

There are several ways to perform a kidney test

The most common way is to draw blood and measure the creatinine level in your blood. The results of this test will be based on several factors, including:

  • Weight: Creatinine levels tend to be higher in people who are overweight or obese
  • Gender: Men typically have higher creatinine levels than women
  • Ethnicity: People with African or African American heritage often have lower levels than those with white European ancestry

Collecting a urine sample can also help find the cause of any issues with your kidneys

A urine test can detect protein, blood, and sugar in your urine. It can also detect whether you may have an infection. Your creatinine levels could be high due to kidney stones or other issues.

The test can tell you if your kidneys are working properly. The creatinine blood test measures how well your kidneys are working. The kidney test can tell you if your kidneys are functioning normally and may help doctors determine if you have chronic kidney disease (CKD). If you have CKD, the kidney test may also be used to monitor your health.


It’s why creatine is so important for athletes – it helps you build up more muscle. The creatinine test can inform you of the health of your kidneys and the efficiency with which they remove pollutants from your blood. 

This test can also be used to identify diseases like kidney disease or type 1 diabetes mellitus, which impact how the body processes glucose.