Final answer:
The test results such as negative, trace, 1+, 2+, 3, and 4+ are typical of urinalysis (protein) laboratory tests. Urinalysis assesses kidney function by examining urine samples and categorizing the test results based on the amount of protein detected.
Step-by-step explanation:
The test results such as negative, trace, 1+, 2+, 3, and 4+ are typical of urinalysis (protein) laboratory tests. Urinalysis is a common test that assesses kidney function by examining urine samples. A routine urinalysis may include examining the physical, chemical, and microscopic properties of urine, including the presence of proteins. The test results are categorized based on the amount of protein detected, with negative indicating no protein, trace indicating a small amount, and progressively higher numbers indicating increasing amounts of protein.