Normal Vital Signs by Age: Newborn to Adult (NCLEX Chart)
Adult vital signs are one set of numbers, but a child's shift with every stage of growth. The pattern is what the exam tests: heart rate and respiratory rate are highest in the newborn and fall as the child grows, while blood pressure climbs with age. Temperature stays roughly the same across the lifespan. Learn the trend, anchor the adult numbers, and the pediatric ranges stop being random.
Start with the adult numbers as your anchor
The adult ranges are the ones you use every shift, and every pediatric range moves toward them as the child ages. Lock these in first:
- Heart rate: 60 to 100 beats per minute.
- Respiratory rate: 12 to 20 breaths per minute.
- Blood pressure: below 120/80 mmHg is the normal target; roughly 90 to 120 systolic.
- Temperature: about 36.5 to 37.5 degrees C (97.7 to 99.5 F), average 37 C / 98.6 F.
- Oxygen saturation: 95 to 100 percent. This one does not change with age.
The full chart: newborn to adult
These are the standard nursing-school teaching ranges for an awake, resting patient. Exact figures vary a little by source, so reason from the group, not a single digit.
| Age | Heart rate (bpm) | Respiratory rate (breaths/min) | Systolic BP (mmHg) |
|---|---|---|---|
| Newborn (birth to 1 mo) | 100 to 160 | 30 to 60 | 60 to 90 |
| Infant (1 to 12 mo) | 90 to 160 | 30 to 50 | 70 to 100 |
| Toddler (1 to 3 yr) | 90 to 140 | 24 to 40 | 80 to 110 |
| Preschooler (3 to 5 yr) | 80 to 120 | 22 to 34 | 80 to 110 |
| School-age (6 to 12 yr) | 70 to 110 | 18 to 30 | 85 to 120 |
| Adolescent (12 to 18 yr) | 60 to 100 | 12 to 20 | 95 to 120 |
| Adult (18 yr and up) | 60 to 100 | 12 to 20 | 90 to 120 |
Try it: is this reading low, normal, or high?
Tap where each reading falls for that patient's age, then see the normal range and the nursing read. Free, unlimited, and every verdict is computed from the same range shown.
Read the patient and the reading, then tap where it falls for that age.
The pattern to carry: heart rate and respiratory rate are highest at birth and fall as the child grows, while blood pressure climbs with age. Exact ranges shift a little by source, so reason from the trend and always pair the number with how the patient looks.
What the number means: the nursing action when a vital is off
The exam rarely asks you to recite a range. It gives you a value and asks what it means and what you do. In pediatrics, the direction of an abnormal vital tells you how worried to be.
- Tachycardia and tachypnea in a child are EARLY signs of distress. A rising heart rate and fast breathing are how a child first compensates for fever, pain, dehydration, or low oxygen. Do not dismiss them: assess, find the cause, and act before the child tires.
- Bradycardia in a child is a LATE and ominous sign. A slowing heart rate in a sick infant or child is usually caused by hypoxia and warns of impending arrest. Treat it as an emergency: assess the airway and support oxygenation immediately.
- A falling respiratory rate after fast breathing is exhaustion, not recovery. A child who was breathing hard and then slows down may be tiring out and heading toward respiratory failure. Look at the whole picture, not just the number.
- Hypotension in a child is a LATE sign of shock. Children hold their blood pressure until they are close to collapse, compensating with tachycardia first. A normal blood pressure does not rule out shock, and a low one is a red flag.
Assess the patient, not just the monitor
A number is only half the picture. Before you treat a vital sign, ask what could move it and how the patient actually looks:
- Fever, crying, pain, and activity all raise heart rate and respiratory rate. A crying toddler with a heart rate of 150 may be perfectly fine once calm. Recheck when settled.
- A well-trained athlete can have a resting heart rate below 60 and be healthy. Pair the number with symptoms: dizziness, chest pain, or low blood pressure make bradycardia urgent.
- Look at color, work of breathing, and level of alertness. Retractions, nasal flaring, grunting, and a limp or lethargic child are worse than any single value.
- Trend beats a snapshot. One reading tells you less than the direction: a heart rate climbing over an hour or a blood pressure drifting down is the signal to escalate.
How the NCLEX tests vital signs
The classic item hands you a set of pediatric vitals and asks for the priority action. The trap answer is to treat the number as expected or to wait. Here is the shape of it:
A nurse is caring for a 3-month-old infant admitted with a respiratory infection. The infant's heart rate is 70 beats per minute and the respiratory rate has dropped from 60 to 20 breaths per minute. Which action should the nurse take first?
show the rationale
- Learn the trend, not a wall of numbers. Heart rate and respiratory rate are highest at birth and fall with age; blood pressure rises with age. Anchor the adult ranges and reason toward them.
- Adult anchors: 60 to 100, 12 to 20, under 120/80. Heart rate 60 to 100, respiratory rate 12 to 20, blood pressure below 120/80, oxygen saturation 95 to 100 percent (SpO2 does not change with age).
- In children, direction signals danger. Tachycardia and tachypnea are early distress; bradycardia, a falling respiratory rate, and hypotension are late, ominous signs of hypoxia or shock.
- Assess the patient, count for a full minute. Fever, crying, pain, and activity raise the rates. Count a pediatric pulse and respirations for a full 60 seconds and pair the number with how the child looks.
Drill pediatric vitals until the ranges are automatic.
Practice fundamentals and pediatrics questions with a full rationale on every option, or upload your own lecture notes to generate questions on exactly the topics your program is testing. A built-in question bank is there to start with too.
Start practicing free