Tests for Kidney Diseases

Tests for Kidney Diseases

Tests for Kidney Diseases

Testing is the only method to find out how well your kidneys are functioning. Until your kidneys are severely damaged, kidney illness frequently goes unnoticed. If you have diabetes, high blood pressure, or a family history of kidney disease, testing is very crucial. 

Blood test: eGFR

 (estimated glomerular filtration rate) 

  • it is the most reliable test to measure how well your kidneys are working. 
  • Your eGFR is an estimated number based on a blood test and your age, sex, and body type.
  • However, the eGFR may not be accurate if you are younger than 18, pregnant, very overweight or very muscular.

Urine test

  • To screen for indications of kidney disease and other health issues, a doctor will examine a small sample of your urine (pee).
  • When your kidneys are damaged, protein may seep into your urine. One of the earliest indications of renal illness maybe this.
  • Urine test checks for complications (problems) from kidney disease such as anemia, diabetes, and metabolic acidosis, also check for a UTI and diabetes. 

Blood test: Serum creatinine test

  • A waste product from your muscles, creatinine is found in your blood. Healthy kidneys filter creatinine out of your blood through your urine.
  • The serum creatinine level is based on a blood test that measures the amount of creatinine in your blood. 
  • When your kidneys are not working well, your serum creatinine level goes up.

Blood urea nitrogen (BUN) test

  • Your BUN level is based on a blood test that measures the amount of urea nitrogen in your blood.
  • Your body produces urea nitrogen as a waste product after breaking down protein.
  • Your BUN level rises when your kidneys are not functioning properly.

Kidney ultrasound 

  • It is a safe and painless test that uses sound waves to make images of your kidneys.
  • A kidney ultrasound can show blood flow to your kidneys if something is abnormal in the kidney’s shape and size, kidney stones, signs of injury or damage, or tumors.
  • It also helps to guide needles during a kidney biopsy.

Kidney biopsy 

  • It can determine the cause of your kidney problem, the severity of your kidney problems, and the best treatment for it.
  • Your doctor can suggest a kidney biopsy to find out if the treatment for your kidney problem is working if you have a kidney tumor, if there is damage to your kidney, or any rare disease.
  • A kidney biopsy is suggested if there’s hematuria, proteinuria, kidney disease with no clear cause, nephrotic syndrome, or concerns for glomerular kidney disease.

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