Table II.
Spiking recovery for the radioimmunoassay (RIA) for feline pancreatic lipase immunoreactivity (fPLI) shown for 3 serum samples and 6 spiking concentrations
| Sample 1 | |||
| Added (μg/L) | Observed (μg/L) | Expected (μg/L) | O/E ratio (%) |
| 0.0 | 3.0 | ||
| 2.0 | 4.1 | 5.0 | 81.3 |
| 4.0 | 5.8 | 7.0 | 82.2 |
| 8.0 | 9.2 | 11.0 | 83.1 |
| 16.0 | 14.6 | 19.0 | 76.9 |
| 32.0 | 27.9 | 35.0 | 79.6 |
| Sample 2 | |||
| Added (μg/L) | Observed (μg/L) | Expected (μg/L) | O/E ratio (%) |
| 0.0 | 16.9 | ||
| 2.0 | 22.3 | 18.9 | 118.0 |
| 4.0 | 26.2 | 20.9 | 125.4 |
| 8.0 | 29.8 | 24.9 | 119.8 |
| 16.0 | 43.7 | 32.9 | 132.8 |
| 32.0 | 72.2 | 48.9 | 147.6 |
| Sample 3 | |||
| Added (μg/L) | Observed (μg/L) | Expected (μg/L) | O/E ratio (%) |
| 0.0 | 35.9 | ||
| 2.0 | 51.1 | 37.9 | 134.8 |
| 4.0 | 53.4 | 55.1 | 96.9 |
| 8.0 | 62.8 | 61.4 | 102.3 |
| 16.0 | 85.1 | 78.8 | 108.0 |
| 32.0 | 121.9 | 117.1 | 104.1 |
O/E — observed/expected