The normal range of respiration is?

Appeared in: AIIMS Raipur NO - 2017 (Shift-1)

Explanation

The normal respiratory rate for a healthy adult at rest is 12 to 20 breaths per minute.
This state of normal breathing is referred to as eupnea.
This range ensures an adequate exchange of oxygen and carbon dioxide to meet the body's metabolic demands.
A respiratory rate is assessed by observing the rise and fall of the chest for one full minute to ensure accuracy.

Option A: This range is too low. A respiratory rate below 12 breaths per minute is defined as bradypnea (abnormally slow breathing).
Option C: This range is too high. A respiratory rate above 20 breaths per minute in a resting adult is defined as tachypnea (abnormally rapid breathing).
Option D: This range extends into the tachypneic category. While 16-20 is normal, a rate of 24 is considered abnormally fast for a resting adult.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Normal adult respiratory rate as background academic context rather than a clinical decision trigger.
Respiratory rate is a critical vital sign and often the earliest indicator of clinical deterioration, such as sepsis or respiratory failure.
Nurses must assess respirations without the patient's awareness to prevent them from consciously altering their breathing pattern, which would lead to an inaccurate measurement.
What if? If a patient who just had surgery and is receiving morphine has a respiratory rate of 10 breaths/min, the nurse's priority action is to assess for over-sedation and be prepared to administer an opioid-reversal agent like naloxone, as this is a sign of opioid-induced respiratory depression.

How to Approach the Question

Identify the core of the question: it asks for a specific, normal physiological value (respiratory rate in an adult).
Recognize this as a factual recall question based on fundamental nursing knowledge.
Recall the standard vital sign ranges for a healthy adult.
Evaluate each option against the established normal range.
Eliminate option A (10-12) as it falls into the bradypnea category.
Eliminate options C (20-22) and D (16-24) as they include or consist entirely of rates considered to be tachypnea.

Concept Tested & Keywords

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

E6 Nursing Vital Signs p. 63-65

Practise the full AIIMS Raipur NO - 2017 (Shift-1)

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