The second test, without a tourniquet ... have "nothing to eat or drink the night before" can end up with high blood urea nitrogen (BUN), which assesses kidney function. Their kidneys are fine ...

Other tests include the blood urea nitrogen (BUN) test, creatinine and cystatin C ... and some patients experience kidney ...

We’ve partnered with Lifeforce to bring you this overview article on blood tests. This test may require you to fast for at least 8 hours before your blood is drawn, depending on the instructions ...

In this procedure, patients are connected to a dialysis machine which acts as an artificial kidney to remove most of the urea and restore/maintain the water and ion balance of the blood.

In this procedure, patients are connected to a dialysis machine which acts as an artificial kidney to remove most of the urea and restore or maintain the water and ion balance of the blood.