Normal respiratory rate of a newborn is?

Appeared in: NHM UP Staff Nurse - 2019

Explanation

The normal respiratory rate for a newborn is 30 to 60 breaths per minute.
The option 30-36 breaths/min is the only range that falls completely within the accepted normal range for a newborn.
Newborns have a higher metabolic rate and smaller lung capacity compared to adults, necessitating a faster respiratory rate to meet their oxygen demands.

Option A: This range (16-18 breaths/min) is significantly below the normal newborn respiratory rate and is closer to the normal range for an adult.
Option B: This range (20-22 breaths/min) is also below the normal range for a newborn and would be considered bradypnea, a sign of potential respiratory compromise.
Option C: This range (28-30 breaths/min) is at the lowest limit of the normal range. A persistent rate at or below 30 breaths/min is considered abnormal and requires further assessment.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Normal vital signs in a newborn as background academic context rather than a clinical decision trigger.
Accurate assessment of a newborn's respiratory rate is a fundamental nursing skill. It must be counted for a full 60 seconds because newborns often have irregular breathing patterns, including short periods of apnea (periodic breathing).
A respiratory rate above 60 (tachypnea) or below 30 (bradypnea), along with signs like nasal flaring, grunting, or retractions, indicates respiratory distress and requires immediate medical attention.
What if? If a newborn's respiratory rate is consistently 70 breaths/minute with intercostal retractions, this signifies significant respiratory distress. The nurse's priority is to ensure a clear airway, provide supplemental oxygen as ordered, notify the physician immediately, and prepare for potential transfer to a neonatal intensive care unit (NICU).

How to Approach the Question

First, identify the key concept in the question, which is the 'normal respiratory rate' for a 'newborn'.
Recall the standard physiological values for neonatal vital signs from your nursing knowledge.
The established normal respiratory rate for a newborn is 30 to 60 breaths per minute.
Evaluate each of the given options to see which one fits within this normal range.
Option A (16-18), B (20-22), and C (28-30) are all below or at the very lowest limit of the normal range.
Option D (30-36) is the only choice that falls squarely within the normal 30-60 breaths/min range, making it the correct answer.

Concept Tested & Keywords

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E6 Nursing Fundamentals Potter Perry 12e Part 3 p. 22-24

E6 Nursing Fundamentals Taylor p. 712-714

Practise the full NHM UP Staff Nurse - 2019

Attempt every question from this paper in a timed mock, then review the full solution for each one.