Q:

What is a BUN-to-Creatinine Ratio blood test?

A:

Quick Answer

A BUN/Creatinine Ratio blood test is used in the differential diagnosis of acute or chronic renal disease, the diagnosis of reduced renal profusion, gastrointestinal bleeding, trauma, liver disease and urinary tract obstructions, according to Quest Diagnostics. The test looks for changes in the ratio of blood urea nitrogen to creatinine.

Know More

Full Answer

An increased BUN/Creatinine Ratio indicates reduced renal profusion, urinary tract obstruction and gastrointestinal bleeding. A decrease in the BUN/Creatinine Ratio indicates liver disease.

Chronic kidney disease gradually worsens over many months and years. Loss of function in the kidneys is a slow process, and renal disease often has few or no symptoms at the start of the disease, according to MedlinePlus. Symptoms typically become apparent during the end stage of renal disease. During end stage renal disease, the kidneys are no longer able to remove waste from the body. Dialysis or a kidney transplant are medically necessary at this point.

According to MedlinePlus, symptoms of kidney disease that occur after the kidneys have started to fail include abnormally dark or light skin, bone pain, drowsiness, numbness, foul breath and excessive thirst. Diabetes and high blood pressure are the most common causes of kidney disease. Autoimmune disorders, birth defects, toxic chemicals, certain medicines, problems with the arteries flowing to the kidneys and backward flow of urine into the kidneys (reflux nephropathy) are all causes of renal disease.

Learn More

Related Questions

  • Q:

    Can I drink water before a fasting blood test?

    A:

    Before a fasting blood test, a patient may only consume water and must abstain from any other foods or liquids, according to Quest Diagnostics. Fasting is necessary before certain blood tests in order to obtain accurate results.

    Full Answer >
    Filed Under:
  • Q:

    What is HCT in a blood test?

    A:

    HCT in a blood test is hematocrit, the percentage of the blood made up of red blood cells, says MedlinePlus. Normal hematocrit results are 40.7 to 50.3 percent for males and 36.1 to 44.3 percent in females. Newborns have slightly higher levels than adults, and infants have slightly lower levels.

    Full Answer >
  • Q:

    What is a CEA blood test?

    A:

    A CEA test, also known as a carcinoembryonic antigen test, is a medical procedure during which the blood levels of the CEA protein are measured, according to WebMD. It is performed on patients who may suffer from cancer of the colon, rectum, lungs, pancreas, ovaries or breasts.

    Full Answer >
  • Q:

    What is a monocyte blood test?

    A:

    A monocyte blood test measures the number of monocytes, a type of white blood cell, in the blood. Doctors use the test to evaluate the function of the immune system and the bone marrow. It is also used to look for certain diseases, such as monocytic leukemia.

    Full Answer >

Explore