Patho Patho #87
The nurse caring for a client with COPD recognizes that large amounts of oxygen are not appropriate for these clients because:
- a COPD client’s respiratory drive differs from that of a non-COPD client.
This answer is correct because the respiratory drive for a client with COPD is hypoxemia so it is not recommended to administer large amounts of O2 to these clients.
- the alveoli of a client with COPD are permanently damaged by excess oxygen.
This answer choice is not correct because this does not address the rationale as to why administration of large amounts of oxygen is detrimental to COPD clients.
- COPD clients require high amounts of CO2 within their blood.
This answer choice is not correct because, although COPD clients become tolerant of higher serum levels of CO2, they do not require high levels of CO2.
- oxygen is not effective for increasing the O2 saturation of a COPD client.
This answer choice is not correct because oxygen may temporarily increase the O2 saturation for a client with COPD; however it is not appropriate to administer large amounts of O2 to these clients as it will decrease their respiratory drive.
The focus of this question is asking the nurse to identify why large amounts of oxygen may be detrimental to clients with COPD. Because of the pathophysiology of COPD, the respiratory drive for these clients differs from clients without COPD. By administering large amounts of O2 to COPD clients, the nurse will decrease the respiratory drive and effort of the client.
The respiratory drive for healthy clients is a buildup of CO2 within the alveoli. COPD clients become tolerant of higher CO2 levels as they are chronically hypercapnic. The respiratory drive for a client with COPD is low oxygen levels, therefore it is not recommended to administer large amounts of O2 to clients with COPD.
Test Taking Tip
Respiratory drive for healthy clients= high levels of CO2 building up within the alveoli. Respiratory drive for COPD client= hypoxemia. It is desirable for clients with COPD to have slightly lower than acceptable O2 saturation levels.