| Sample 1 | Drink | Sample 2 | Sample 3 | Sample 4 | Sample 5 | Sample 6 |
Time of day | 2.10pm | | 2.40pm | 3.10pm | 3.40pm | 4.10pm | 4.40pm |
Time interval (min) | 76 | | 30 | 30 | 30 | 30 | 30 |
Urination duration (s) | 5 | | 5 | 6 | 7 | 6 | 5 |
Urine volume (ml) | 72 | | 35 | 95 | 156 | 135 | 76 |
Urine flow rate (ml/sec) | 14.4 | | 7.0 | 15.8 | 22.3 | 22.5 | 15.2 |
Urine Production rate (ml/min) | | | | | | | |
Na+ conc’n (mmol/litre) | 120 | | 43 | 12 | 11 | 16 | 17 |
Na+ excretion rate (mmol/min) | | | | | | | |
Urine osmolality (mOsm/kg H2O) | 743 | | 453 | 169 | 94 | 109 | 188 |
Osmolar excretion rate (mOsm/min) | | | | | | | |
1. Calculate and show example of the
(a) Urine production rate (ml/min)
(b) Na+ excretion rate (mmol/min)
(c) Osmolar excretion rate (mOsm/min)
2. What are the possible reason that could lead to one of thesubjects have high urine production rate but low urine flow rate?Provide and explain using two examples
