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| Parameters | Units | Early warning for COVID-19 | Early warning for STEMI |
|---|---|---|---|
| Respiratory rate | bpm | ≥20bpm | — |
| Lung/heart sound | — | Crackles | — |
| Heart rate | bpm | ≥100bpm | ≥80bpm |
| Temperature | ℃ | ≥38℃ | — |
| Cough | — | Dry cough | — |
| SpO2 | % | ≤94% | ≤94% |
| ECG | mV | Arrhythmia | Arrhythmia/ST segment elevation |
| BP | mmHg | ≥140/90mmHg | Reduction in systolic BP [10] |
