Final answer:
The BUN test, Creatinine clearance test, and Urinalysis are all laboratory tests used to assess kidney function, with each providing different information on the health and performance of the kidneys. Hence, the correct option is 4.
Step-by-step explanation:
The laboratory tests used to assess kidney function include the Blood Urea Nitrogen (BUN) test, Creatinine clearance test, and Urinalysis. All these tests together provide a comprehensive understanding of the kidneys' performance and their ability to remove waste from the body.
- The BUN test measures the amount of urea nitrogen in the blood and serves as an indicator of kidney function.
- The Creatinine clearance test is used to measure the rate at which the kidneys filter creatinine from the blood, which is crucial for estimating the glomerular filtration rate (GFR).
- Urinalysis involves a series of tests on a urine sample to detect any abnormalities that could indicate kidney problems.
In summary, the correct answer to the student's question about which laboratory tests are used to assess kidney function is all of the above.