COMPS:UNIT 2: O2 DELIVERY SYSTEMS + EQUIPMENT Flashcards
(47 cards)
What should you ALWAYS REMEMBER w/ mobilizing a pt w/ vent?
ALWAYS MOBILIZE TO SIDE OF VENT!!!
FiO2 ===
fraction of inspired O2
FiO2
Inspired O2 conc. depends on 3 things:
- Flow of 02 in the unit
- VT of the pt
- Pts breathing pattern
Normal FIO2 in Room Air===
20.98% or ~21%
PulseOX Normal lvl should read====
95-100
PulseOX
Purpose
- measures of Arterial O2 saturation and Pulse Rate
- O2 saturation (SaO2)== % of hgb saturated w/ O2
-
Spectophotometry det’s amt of Hgb
- sensor measures absorption of selected wavelengths beamed thru tissue
PulseOX
Indications
- Used to detect hypoxemia in pts w/ unstable O2 status
-
Medicare/Medicaid
- Sat. of =88% qualifies some for O2 tx
- NORMA==95-100%
PulseOX
Documentation MUST include: 3
- BEFORE: Ambulation/stairs/exercise on room air
- DURING: Exertion on room air and on satisfactory O2 lvl
- AFTER: Exertion
PulseOX
Applying…
- Body probes:
- Digit
- Earlobe
- Bridge of nose
- Forehead
PulseOX
Limitations:
REASONS FOR FALSE READINGS
- Error in initial calibrations
- Motion artifacts
- **Diminished pulse
- **Peripheral vasoconstriction from drugs or hypOthermia
- Dysfunctional Hgb
- Injected dyes
- **Dark nail polish
- Optical shunting (light wont reach vascular bed)
- Outside light sources
O2 Delivery systems often involve 2 pieces:
- Flowmeter
2. Humidification system
O2 Delivery Systems
1. Nasal Cannula
PURPOSE
- Delivers FiO2 of 24-44% w/ flow rates up to 6L of O2/minute
- __6L is MAX for regular Nasal Cannula*****
O2 delivery
- Nasal Cannula
DEVICE DESIGN (MOST IMPORTANT STUFF)
- Prongs attach tubing that is connected to O2 tank, portable O2 generator, or wall connection via Flowmeter
- **For every 1L/min INC in O2 delivered—> APPROXIMATE 4% INC in FiO2
- ADD HUMIDIFICATION if >3L O2
O2 Delivery
1. Nasal Cannula
INDICATIONS :
- LOW lvls O2 w/in any pt setting
O2 Delivery
1. Nasal Cannula
BENEFITS
- Convenient in delivering O2 conc’s ranging 24-44%
- EZ pt mobility
- Permits pt to eat, drink, talk, oral/facial ADLs, take oral meds and/or nebulizer while receiving O2
O2 Delivery
1. Nasal Cannula
LIMITATIONS:
- UNABLE to deliver O2 conc’s >6L OR 44%****
- MUST nasally breath==> encourage “Pursed-Lip breathings”
- May NOT be used if pt unable to tolerate, or no cognition or cooperation to consistently wear
O2 Delivery
2. High Flow Nasal Cannula
*THICKER TUBING
*LOUDER SOUND
PURPOSE:
- Allows flow of 6-15L/min of O2
- FiO2 is 54-75%
O2 Delivery
2. High Flow Nasal Cannula
DEVICE DESIGN:
LARGE prongs/tubing for HIGHER O2 flows
High Flow Nasal Cannulas mostly seen where?
Hospitals
High Flow Nasal Cannulas
BENEFITS
- ALL SAME AS Reg. Nasal Cannula
- allows for 6-15L/min O2
- FiO2 delivery is 54-75% (better for higher O2 demand)
High Flow Nasal Cannula
LIMITATIONS:
- SAME as reg. nasal cannula
- Min. research on bennies long term
- MUST be humidified for long durations
O2 Delivery
3. Aquinox/Optiflow/High Flow Humidification System
PURPOSE
- humidification system delivers warm, humid O2 @ HIGH FLOWS
- up to 45L/min, 100% FiO2—Lg. nasal cannula
O2 Delivery
3. Aquinox/Optiflow/High Flow Humidification System
DEVICE DESIGN:
- Humidifier chamber
- O2 tubing
- Delivery tube
- High flow nasal cannula
O2 Delivery
3. Aquinox/Optiflow/High Flow Humidification System
INDICATIONS:
- ONLY in hospital or LTACH
- *cannot go home w/ this