The voltage delivering 1 watt depends on how many amps are present. We use watts to measure power (P), and amps (I) times volts (E) equals watts.
The urea and water that make up urine are removed from the blood in  the kidney. This is then passed on to the bladder which will be  excreted as urine.
Blood Urea Nitrogen test is used to measure the levels of nitrogen in the blood which comes from urea. This test is also named as BUN test. Urea is produced as a result of protein breakdown in the body. Urea passes out in the urine from the body. This article gives information about the urea blood test.This test is used to check how well the kidneys are functioning. BUN level rises if the urea is not removed from the blood by the kidneys.Dehydration, high protein diet or heart failure can also increase the levels of BUN. Liver damage or disease may lower the BUN level.his test is also named as BUN test. Urea is produced as a result of protein breakdown in the body. Urea passes out in the urine from the body. This article gives information about the urea blood test.