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respiratory therapy
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nasal cannula
1 - 6 LPM
FIO2 24-44
simple mask
5 - 12 LPM
35 - 50 FIO2
reservoir cannula
1/4 - 4 LPM
22 - 35 FIO2
trans-trachael catheter
1/4 - 4 LPM
22-35 FIO2
partial rebreather
6 - 10 LPM
35-60 FIO2
non-rebreather
6 - 10
55-50 FIO2
one flap may be removed to prevent accident suffocation, this will provide slightly less FIO2
AEM (air entrainment mask or venturi mask)
LPM determined by percentage of oxygen to be delivered.
24 - 50 FIO2 (varies with back pressure)
LPM / FIO2
2 - 24%
4 - 28%
6 - 31%
8 - 35%
8 - 40%
12 - 50%
low flow
less than 8 LPM
all basic O2 devices are low flow with variable FIO2 excepe AEM
When should humidity be provided?
When flow is greater than 4 LPM
O2 concentration
low - less than 35%
moderate - 35-60%
high - greater than 60%
High flow vs. low flow devices
High flow devices meets and exceeds the patients demands.
Low flow devices supplements with room air
hypoxemia
less than 60 torr PaO2
less than 90% SaO2
PaO2 ranges:
normal 80-100%
mild 60-79%
moderate 59-40%
severe less than 40%
respiratory rate
normal 12-20 breaths per minute
if greater than 25; patient needs a high flow system
rate greater than 35 is a critical value and indicates need for mechanical ventilation
Patient's PaO2 norms per age of patient
age 60 PaO2 less than 80 is normal
Author
Lisa
ID
124469
Card Set
respiratory therapy
Description
Respiratory Care 101; O2 devices
Updated
2011-12-19T16:28:18Z
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