Vital Signs
Temperature
- Fever/Hyperthermia - Infection: Rule out upper respiratory infection, pneumonia, UTI, cellulitis 
- Systemic rheumatic disease: Rheumatoid arthritis, vasculitis, etc. 
 
Heart rate
- Tachycardia 
- Bradycardia 
Respiratory rate
- Tachypnea 
- Bradypnea 
Blood Pressure
- Hypotension