Final answer:
A urine specimen collected over a specified period for quantitative analysis is called a C) 24-hour urine collection. This approach measures various urinary substances over a full day, providing a detailed profile of kidney function and metabolic processes.
Step-by-step explanation:
A urine specimen collected over a specific period of time for quantitative analysis is known as a C) 24-hour urine collection.
This type of collection is used to measure various substances in the urine over a 24-hour period, which can include total daily urinary volume and levels of magnesium, sodium, uric acid, calcium, citrate, oxalate, and phosphate.
It's a comprehensive approach that allows for the assessment of kidney function and the detection of metabolic disorders.
During the 24-hour urine collection, a patient is required to collect all urine produced within a 24-hour time frame.
This method ensures that fluctuations in urinary constituents throughout the day are accounted for, and therefore, it provides a more accurate depiction of the patient's urinary excretion profile compared to a single, random urine sample.