As I walk past them, I can see that they’ve placed a mobile phone in the recessed door-handle of the car next to them, so that it’s suspended sideways.

What is Blood Urea Nitrogen (BUN)?

The blood urea nitrogen (BUN, pronounced "B-U-N") test is a measure of the amount of nitrogen in the blood in the form of urea, and a measurement of renal function. Urea is a by- product from metabolism of proteins by the liver, and therefore removed from the blood by the kidneys.

Other Names