Which change is most likely to stimulate an increase in the rate and depth of breathing in a healthy person?
Correct answer: B. A rise in arterial carbon dioxide
- A. A fall in arterial carbon dioxide
- B. A rise in arterial carbon dioxide
- C. A rise in blood oxygen above normal
- D. A fall in body temperature
Explanation
A rise in arterial carbon dioxide increases hydrogen ion concentration and stimulates respiratory centres to increase ventilation. This response helps remove excess carbon dioxide and restore acid-base balance.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Respiratory System
The respiratory system includes the air passages, lungs, pleura, alveoli and the mechanics of breathing. It explains pulmonary ventilation, gas exchange, oxygen and carbon dioxide transport, regulation of breathing, and the difference between external respiration in the lungs and internal respiration in body tissues.
Practise Respiratory System
40 free Respiratory System MCQs from Anatomy and Physiology for Nursing, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Anatomy and Physiology for Nursing questions like this
Anatomy and Physiology for Nursing is on 4 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Respiratory System questions
A patient has a respiratory rate of 30 breaths per minute, shallow breathing, and increasing restlessness. Which finding should the nurse report first?
Which muscle is the main muscle of quiet inspiration?
A patient with chronic obstructive pulmonary disease is short of breath and has difficulty exhaling. Which instruction can help reduce air trapping?
Which structure closes over the laryngeal opening during swallowing to help prevent food entering the trachea?
What happens to the pressure inside the lungs during quiet expiration?
A patient has rapid, shallow breathing after abdominal surgery. Which measurement best reflects the amount of fresh air reaching the alveoli each minute?