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Drug Concentrations Targeted
| Baseline | Concentration 1 | Concentration 2 | Concentration 3 | Concentration 4 | |
| Placebo (saline) | - | - | - | - | - |
| Propofol (μg/ml) | 0.00 | 0.15 | 0.30 | 0.60 | 0.90 |
| Ketamine (ng/ml) | 0.00 | 15.00 | 30.00 | 60.00 | 120.00 |
| Fentanyl (ng/ml) | 0.00 | 0.20 | 0.40 | 0.80 | 1.20 |
| Ketamine (ng/ml) & | 0.00 | 30.00 | 30.00 | 30.00 | 30.00 |
| Fentanyl (ng/ml) | 0.00 | 0.20 | 0.40 | 0.80 | 1.20 |
