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URINARY SPOT BUN

About the test
What is this test done for?
The spot urine urea nitrogen is a test that determines how much urea is passed in the urine to assess the amount of protein breakdown.
Why is it Done?
The urine urea nitrogen test helps in determining protein levels in the body. It is performed if there is a suspicion of heart failure. It also helps in measuring protein uptake. It helps in assessing the functioning of the kidneys.
When should it be performed?

This test is performed in the following conditions:

  • Patient is on medications for kidney disorders.
  • Fatigue, lack of concentration, poor appetite, or trouble sleeping.
  • Swelling, puffiness, edema, particularly around eyes and face.
  • Decrease in the amount of urine
  • High blood pressure
  • At intervals during dialysis.
How is it done
An early morning urine sample will be needed. Discard the first urine and collect sample from the middle stream, avoiding any contact with the skin. Collect urine in a sterile container.
Results
  • Normal values are 12-20 grams over 24 hours.
  • If the levels are low, it suggests malnourishment, especially if diet is low in proteins. It could also indicate a kidney disorder.
  • If the levels are high, it could mean that there is too much protein in the diet. It also suggests excessive protein breakdown in the body.
Other Tests
Renal function blood test should be done to identify the exact cause of abnormality.
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