| ACVPU | alert, confusion, voice, pain, unresponsive |
| AMR | antimicrobial resistance |
| AUROC | area under receiver operating characteristic |
| AVPU | alert, voice, pain, unresponsive |
| COPD | chronic obstructive pulmonary disease |
| CI | confidence interval |
| ED | emergency department |
| EMT | emergency medical technician |
| HR | heart rate |
| ICD-10 | International Classification of Diseases, Tenth Revision |
| LMICs | low- and middle-income countries |
| LR+ | positive likelihood ratio |
| LR− | negative likelihood ratio |
| LRS | low-resource settings |
| MEWS | Modified Early Warning Score |
| NEWS | National Early Warning Score |
| NEWS2 | National Early Warning Score version 2 |
| NPV | negative predictive value |
| O2 | oxygen |
| PPV | positive predictive value |
| qSOFA | Quick Sequential Organ Failure Assessment |
| RR | respiratory rate |
| ROC | receiver operating characteristic |
| SBP | systolic blood pressure |
| SIRS | Systemic Inflammatory Response Syndrome |
| SpO2 | peripheral oxygen saturation |
| SOS | Search Out Severity |
| UTI | urinary tract infection |
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