Pediatric Emergency Nursing PICO Questions Related

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What is the purpose of pursed lip breathing?

  • A. Helps exhale less volume of air during expiration
  • B. Increases expiration
  • C. Promotes effective use of the diaphragm
  • D. Relieves compensatory burden on upper thorax
Correct Answer: A

Rationale: Pursed lip breathing is a breathing technique commonly used to help improve breathing efficiency in individuals with respiratory conditions such as chronic obstructive pulmonary disease (COPD). By pursing the lips during exhalation, it creates back pressure that helps to keep the airways open longer. This results in slower and more controlled expiration, allowing the individual to exhale a smaller volume of air while maintaining adequate oxygen exchange. This can reduce the feeling of dyspnea (difficulty breathing) and help improve oxygen saturation levels in the blood.