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Suggested outer tip diameter of capillaries for different micropuncture applications in rats and mice.
| rat | mouse | |
|---|---|---|
| tubule identifier | 1-2 μm | 1 μm |
| micropressure system | 1-2 μm | 1-2 μm |
| proximal fluid collection | 9-11 μm | 7-9 μm |
| distal fluid collection | 7-9 μm | 5-7 μm |
| peritubular blood collection | 13-16 μm | 12-14 μm |
| perfusion “nanoliter pump” | 8-10 μm | 7-9 μm |
| wax block | 12-14 μm | 10-12 μm |
