Final answer:
A nurse can use a reagent strip to detect substances in a urine sample that may be indicative of certain conditions such as infection or kidney failure.
Step-by-step explanation:
A nurse is preparing to collect a urine sample for urinalysis using a reagent strip. The reagent strip can detect substances that are consistent with various conditions. For example, the strip can detect the presence of nitrites, which may indicate an infection with certain types of bacteria. It can also detect proteins such as albumin, which may be a sign of a kidney infection or kidney failure. Additionally, the strip can measure levels of sodium, white blood cells, and blood in the urine, which could be indications of a urinary tract infection or other urinary system disorder.