| A-a | Alveolar-arterial gradient |
| a/A ratio | Alveolar-arterial ratio |
| ANOVA | Analysis of variance |
| BE | Base excess |
| BUN | Blood urea nitrogen |
| Ca++ | Calcium ion |
| Cl− | Chloride ion |
| DAP | Diastolic arterial pressure |
| ETCO 2 |
End-tidal carbon dioxide |
| GEE | Generalized Estimating Equations |
| HCO3− | Bicarbonate |
| HCT | Haematocrit |
| Hgb | Haemoglobin |
| HR | Heart rate |
| IM | Intramuscolar |
| IV | Intravenous |
| K+ | Potassium ion |
| KDM | Ketamine-dexmedetomidine-methadone combination |
| KDM_G | Ketamine-dexmedetomidine-methadone group |
| MAP | Mean arterial pressure |
| MDM | Midazolam-dexmedetomidine-methadone combination |
| MDM_G | Midazolam-dexmedetomidine-methadone group |
| Na+ | Sodium ion |
| NHPs | Non-human primates |
| PaCo2 | Partial pressure of arterial carbon dioxide |
| PaO2 | Partial pressure of arterial oxygen |
| pH | Potential of hydrogen |
| RR | Respiratory rate |
| SAP | Systolic arterial pressure |
| SC | Subcutaneous |
| SpO2 | Peripheral oxygen saturation |
| T | Rectal body temperature |
| T0 | Intubation time |
| TZD | Tiletamine-zolazepam-dexmedetomidine combination |
| TZD_G | Tiletamine-zolazepam-dexmedetomidine group |