| Newborn | 100–160 |
| Infant | 90–160 |
| Toddler | 80–140 |
| Preschool | 70–120 |
| School-age | 60–110 |
| Adolescent / Adult | 60–100 |
| Newborn | 30–60 |
| Infant | 25–50 |
| Toddler | 20–30 |
| Preschool | 20–25 |
| School-age | 16–22 |
| Adult | 12–20 |
| Newborn | ~65/40 |
| Infant | ~90/55 |
| Toddler | ~95/60 |
| School-age | ~105/65 |
| Adolescent | ~115/70 |
| Adult | <120/80 |
| Normal temp | 98.6°F / 37°C |
| Fever | ≥100.4°F / 38°C |
| O₂ sat | ≥95% (report <90%) |
| Heart rate | <60 or >100 |
| Respirations | <12 or >20 |
| Blood pressure | <90 systolic or crisis |
| O₂ sat | <90% |
| Pediatric | HR & RR faster; BP lower |
| Pain | the '5th vital sign' — self-report |
| Older adults | atypical (infection = confusion) |