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review 3
| Question | Answer |
|---|---|
| Minimum acceptable adult urine output. | 30 ml/hr |
| Minimum acceptable per nursing shift | 240 ml/ 8 hr |
| Definition of oliguria per 24 hours | < 400 mL/day |
| Definition of polyuria. | > 2,500 mL/day |
| Normal glomerular filtration rate (GFR). | 125 mL/min |
| Total fluid filtered by kidneys daily (125 mL/min × 60 × 24). 99% reabsorbed. | ~180 L/day |
| Actual urine output (only 1% of filtered fluid). | ~1.5 L/day |
| Female urethra length — SHORT = higher UTI risk. | 4cm |
| Male urethra length — LONG = lower UTI risk. | 20cm |
| Number of nephrons per kidney. | 1 million |