| Pittsburgh calling criteria[3] |
| Respiratory: |
| Rate <8 or >36 breaths/min |
| New onset difficult breathing |
| New pulse oximeter reading less than 85 percent for more than five minutes (unless patient known to have chronic hypoxemia) |
| Heart rate: |
| <40 or >140 with symptoms or any rate >160 beats/min |
| Blood pressure: |
| <80 or >200 systolic or 110 mmHg diastolic with symptoms |
| Acute neurological change: |
| Acute loss of consciousness |
| New-onset lethargy or Narcan use without immediate response |
| Seizure (outside of seizure monitoring unit) |
| Sudden loss of movement (or weakness) of face, arm, or leg |
| Other: |
| Chest pain unresponsive to nitroglycerine or doctor unavailable |
| Color change (of patient or extremity): pale, dusky, gray, or blue |
| Unexplained agitation for more than 10 minutes |
| Suicide attempt |
| Uncontrolled bleeding |
