Final answer:
The statement that the minimum urine output in an hour is 30 cc/hr is False. Normal urine output is approximately 30 ml/hr for a healthy adult but can be less in cases of oliguria. Daily urine production is calculated using urine output per minute multiplied by the number of minutes in a day.
Step-by-step explanation:
The statement that the minimum urine output in an hour is 30 cc/hr is False. Normal urine output for a healthy adult is typically considered to be between 800 to 2000 ml/day, or roughly 1 ml/min under normal circumstances.
Considering a day has 1440 minutes (24 hours), this aligns with the average daily urine production of about 1500 ml/day.
Therefore, the minimum healthy urine output is generally closer to 0.5 ml/min or 30 ml/hr, which is sufficient to maintain proper waste elimination and fluid balance in the body.
Oliguria is defined as a urine output of less than 400 ml/day (which translates to an average of less than 16.7 ml/hour over a 24-hour period) and is considered a medical concern.
It can occur in various conditions such as fever, shock, vomiting, or diarrhea.
Urine production can be affected by several factors including hydration, diet, filtration rate, systemic blood pressure (which must stay above 60 to ensure proper filtration) and metabolic activities like the breakdown of red blood cells.
When calculating daily urine production, a standard formula is used: multiply urine/min times 60 minutes times 24 hours. For example, if urine production was 0.9 ml/min, the calculation would be 0.9*60*24, resulting in 1296 mL/day.