Egan's Fundamentals of Respiratory Care
Exam Questions And Answers 100% Pass
Overall goals of medical gas therapy - ANS maintain adequate tissue oxygenation and
minimize cardiopulmonary work
clinical objectives of medical gas therapy - ANS correct acute hypoxemia, decrease
symptoms of hypoxemia, decrease cardiopulmonary workload
TABLE 41-1 pg. 906 - ANS
Guidline 41-1 pg. 907 - ANS
Assessing need for O2: PaO2 is less than ___: - ANS 60
Assessing need for O2: SaO2 is less than: ___% room air - ANS 90
Oxygen toxicity primarily affects the _____ and ____ - ANS lungs and CNS
Two primary factors that determine the harmful effects of O2: - ANS PO2 and exposure time
depression of ventilation - ANS oxygen induced hypoventilation
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retinopathy of prematurity - ANS abnormal eye condition that occurs in some premature or
low birth weight infants who receive supplemental O2
absorption atelectasis - ANS occurs with FiO2 above 50%
Patients with small ______ ______ are more likely to suffer from absorption atelectasis -
ANS tidal volumes
examples of patients that would have small VT: - ANS over sedation, pain or surgery
The user judges the performance of an O2 delivery system by answering two key questions: -
ANS 1) how much O2 can the system deliver? 2) does the delivered FiO2 remain fixed or vary
under changing patient demands?
Table 41-3 pg. 912-913 - ANS
power point slide - ANS
if inspiratory flow decreases during nasal canula, does FiO2 increase? - ANS no
Nasal cannula FiO2 - ANS 22-44%
Flow rate of nasal cannula - ANS 1/4- 6 L/min
flows greater than 6 to 8 L/min in a nasal cannula can cause: - ANS patient discomfort
if flow rate of a nasal cannula is greater than 4, a _______ ________ is used - ANS bubble
humidifier