Normal Respiratory Rates in Pediatric Populations

Age-Specific Normal Ranges

For healthy term newborns, the normal respiratory rate ranges from 30-60 breaths per minute during the first 24 hours of life, with a median of 42-46 breaths per minute, while for infants under 1 year the range is 20-60 breaths per minute, and for children 12-59 months it is typically below 40 breaths per minute 1, 2
The normal range for infants under 1 year is 20-60 breaths/minute, with a lower limit of concern being <20 breaths/minute and an upper limit of concern being ≥60 breaths/minute 1
The 50th percentile decreases from 41 breaths/minute at 0-3 months to 31 breaths/minute at 12-18 months 2

Tachypnea in newborns/young infants (<2 months) is indicated by a respiratory rate of ≥60 breaths/minute, suggesting potential respiratory distress 1
Tachypnea in older infants/toddlers (12-59 months) is suggested by a respiratory rate of ≥40 breaths/minute, indicating possible lower respiratory infection 2
Bradypnea in infants (<1 year) is an alarm sign requiring immediate medical attention, defined as a respiratory rate of <20 breaths/minute 1

Counting the respiratory rate for a full 60 seconds is recommended for the most accurate measurement 2
Measurement should be taken during sleep or quiet state when possible, as crying and agitation distort respiratory patterns 1, 2
Manual measurement can be imprecise with significant intra-observer variation, and is particularly difficult with crying, irritable, or moving children 1, 2
Using incorrect normal values leads to inaccurate tachypnea determination and misdiagnosis of conditions like pneumonia 1, 2

For infants and children with pulse but inadequate respiratory effort, give 1 breath every 2-3 seconds (20-30 breaths/minute) during resuscitation 3
During CPR with advanced airway, target 1 breath every 2-3 seconds (20-30 breaths/minute), accounting for age and clinical condition 3, 4, 5, 6
Rates exceeding 30 breaths/minute during CPR may compromise hemodynamics 3, 4, 5, 6