Final answer:
The test used to measure the amount of nitrogen in the blood and indicate renal function is called the blood urea nitrogen (BUN) test.
Step-by-step explanation:
The test used to measure the amount of nitrogen in the blood and indicate renal function is called the blood urea nitrogen (BUN) test.
BUN is an estimate of urea in the blood and serves as an indicator of kidney function. In renal dysfunction, there may be a moderate increase in the concentration of urea, indicating impaired kidney function.
To perform the BUN test, a blood sample is taken and the amount of urea nitrogen in the blood is measured.