Solved UPSC CDS/OTA Question
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Q · Respiratory System medium · 45s
Normal breathing rate in a healthy adult at rest is about:
TopicRespiratory System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Resting adult respiration rate typically ranges from 12 to 20 breaths per minute, providing sufficient alveolar ventilation (~6–8 liters per minute) to meet metabolic needs. Rates significantly outside this range may indicate respiratory pathology or compensatory mechanisms.
Final Answer: Option B - 12–20 breaths/min