Final answer:
The best container size for 24-hour urine collection is 2000ml, as it accommodates the average urine volume of 1500 ml/day with additional space to ensure that higher volumes can be collected without needing to be emptied.
Step-by-step explanation:
The volume of urine excreted by an average healthy person per day is typically between 600 ml to 2500 ml, the average being approximately 1500 ml/day. The patient would require a container large enough to collect a full day’s urine output without the need for emptying it partway through the collection period. Therefore, the best choice of container for a 24-hour urine collection would be option b. 2000ml since it can comfortably hold the average daily urine volume and even accommodate higher volumes that can occur in certain circumstances without spillage or overflow.
The capacity of the bladder and the rate at which urine is produced are also factors to consider. Nephrons filter about 180 liters of fluid daily, but only approximately 1.5 liters is released as urine, which enters the bladder through the ureters. Given this information and the average excretion values, a 2000ml container would allow for the collection of urine over the course of 24 hours, including any variations that might result from changes in hydration status, diet, or other individual factors.