My creatinine level is 400. What does it mean?

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Hello. I am 39 years old. I am a female. I was plead guilty to a DUI last August, have to take drug screens every week. About have of the tests keep coming back "diluted" when I asked for the results, I saw that my Creatinine level is 400.   What does this mean?

My second question is that I had blood work done on my kidneys and they did a CBC WITH DIFFERENTIAL done. I have no idea what this is. On my results, it said my MCV value was redflagged. I don't know what MCV is either. Can you please explain to me what all of this is.

2 Answers

These messages are for mutual support and information sharing only. Always consult your doctor before trying anything you read here.
Creatinine is a chemical waste product that's produced by your muscle metabolism and to a smaller extent by eating meat. Healthy kidneys filter creatinine and other waste products from your blood. The filtered waste products leave your body in your urine.

If your kidneys aren't functioning properly, an increased level of creatinine may accumulate in your blood. As your creatinine has increased to 400, it is very urgent and critical time for you. As your kidney condition is progressive, it can develop into two opposite directions. With an effective treatment in time, your renal function can be improved and creatinine level will decline. Otherwise, you will have to start dialysis if your creatinine level increases further.

Mean corpuscular volume (MCV), also known as mean cell volume, is an important number listed on a complete blood count (CBC) that can help diagnose different types of anemia as well as other health conditions. The MCV is a value that describes the average size of red blood cells (erythrocytes) in a blood sample. While the MCV can provide important information, it is not used alone—it is interpreted along with blood counts and other red blood cell indices such as mean corpuscular hemoglobin concentration (MCHC) and red cell distribution width (RDW) to narrow diagnoses. A high MCV indicates larger RBCs and is called macrocytosis. The MCV can be a helpful test even when the red blood cell count and other tests are normal, especially in the setting of kidney disease.
May I ask you a question first? Is the creatinine level of 400 is a urine test result or a blood test result? If it is a urine test result, you can just ignore it because it does not matter. If it is a blood test result, then it means that your kidneys are failing and you may need dialysis or kidney transplantation to survive in the future.

As for the 2nd question, can you tell me what is the exact number of your MCV? MCV is mean corpuscular volume, which means the size of red blood cells. It is usually interpreted in combination with another parameter called hemoglobin level. If your MCV is only borderline high/low or your hemoglobin level is normal, then you can just ignore the MCV. If your hemoglobin is decreased and the MCV is very abnormal, then it means something. What are your hemoglobin and MCV numbers?