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Which one of the following gives information about external respiration? Recording of respiratory rate, pattern and depth or Pulse oximetry or Chest radiograph
Medicine
Biology
Physiology
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Answer
The best option that provides information about external respiration is pulse oximetry.
Pulse oximetry measures the oxygen saturation level in the blood, which reflects how well oxygen is being transported from the lungs to the tissues. It gives insight into the effectiveness of external respiration, as external respiration is concerned with the exchange of oxygen and carbon dioxide in the lungs.
Recording of respiratory rate, pattern, and depth can give general information about breathing, but it does not specifically assess the gas exchange process. Chest radiograph (X-ray) can provide information about lung structure and possible abnormalities but does not directly measure respiratory function or gas exchange.
Suggestions
- How does pulse oximetry measure oxygen saturation in the blood?
- What other information can be obtained from recording respiratory rate, pattern, and depth?
- Can you explain the difference between pulse oximetry and chest radiograph in assessing respiratory function?
- What are the limitations of using pulse oximetry to assess external respiration?
- Are there any other methods to directly measure gas exchange in the lungs?
AAAnonymous