COMPS:UNIT 2: O2 DELIVERY SYSTEMS + EQUIPMENT Flashcards

(47 cards)

1
Q

What should you ALWAYS REMEMBER w/ mobilizing a pt w/ vent?

A

ALWAYS MOBILIZE TO SIDE OF VENT!!!

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2
Q

FiO2 ===

A

fraction of inspired O2

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3
Q

FiO2

Inspired O2 conc. depends on 3 things:

A
  1. Flow of 02 in the unit
  2. VT of the pt
  3. Pts breathing pattern
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4
Q

Normal FIO2 in Room Air===

A

20.98% or ~21%

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5
Q

PulseOX Normal lvl should read====

A

95-100

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6
Q

PulseOX

Purpose

A
  • 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
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7
Q

PulseOX

Indications

A
  • Used to detect hypoxemia in pts w/ unstable O2 status
  • Medicare/Medicaid
    • ​Sat. of =88% qualifies some for O2 tx
  • NORMA==95-100%
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8
Q

PulseOX

Documentation MUST include: 3

A
  • BEFORE: Ambulation/stairs/exercise on room air
  • DURING: Exertion on room air and on satisfactory O2 lvl
  • AFTER: Exertion
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9
Q

PulseOX

Applying…

A
  • Body probes:
    • Digit
    • Earlobe
    • Bridge of nose
    • Forehead
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10
Q

PulseOX

Limitations:

REASONS FOR FALSE READINGS

A
  1. Error in initial calibrations
  2. Motion artifacts
  3. **Diminished pulse
  4. **Peripheral vasoconstriction from drugs or hypOthermia
  5. Dysfunctional Hgb
  6. Injected dyes
  7. **Dark nail polish
  8. Optical shunting (light wont reach vascular bed)
  9. Outside light sources
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11
Q

O2 Delivery systems often involve 2 pieces:

A
  1. Flowmeter

2. Humidification system

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12
Q

O2 Delivery Systems

1. Nasal Cannula

PURPOSE

A
  • Delivers FiO2 of 24-44% w/ flow rates up to 6L of O2/minute
    • _​_6L is MAX for regular Nasal Cannula*****
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13
Q

O2 delivery

  1. Nasal Cannula

DEVICE DESIGN (MOST IMPORTANT STUFF)

A
  • 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
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14
Q

O2 Delivery

1. Nasal Cannula

INDICATIONS :

A
  • LOW lvls O2 w/in any pt setting
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15
Q

O2 Delivery

1. Nasal Cannula

BENEFITS

A
  • 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
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16
Q

O2 Delivery

1. Nasal Cannula

LIMITATIONS:

A
  • 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
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17
Q

O2 Delivery

2. High Flow Nasal Cannula

*THICKER TUBING

*LOUDER SOUND

PURPOSE:

A
  • Allows flow of 6-15L/min of O2
  • FiO2 is 54-75%
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18
Q

O2 Delivery

2. High Flow Nasal Cannula

DEVICE DESIGN:

A

LARGE prongs/tubing for HIGHER O2 flows

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19
Q

High Flow Nasal Cannulas mostly seen where?

20
Q

High Flow Nasal Cannulas

BENEFITS

A
  • ALL SAME AS Reg. Nasal Cannula
  • allows for 6-15L/min O2
  • FiO2 delivery is 54-75% (better for higher O2 demand)
21
Q

High Flow Nasal Cannula

LIMITATIONS:

A
  • SAME as reg. nasal cannula
  • Min. research on bennies long term
  • MUST be humidified for long durations
22
Q

O2 Delivery

3. Aquinox/Optiflow/High Flow Humidification System

PURPOSE

A
  • humidification system delivers warm, humid O2 @ HIGH FLOWS
    • ​up to 45L/min, 100% FiO2—Lg. nasal cannula
23
Q

O2 Delivery

3. Aquinox/Optiflow/High Flow Humidification System

DEVICE DESIGN:

A
  • Humidifier chamber
  • O2 tubing
  • Delivery tube
  • High flow nasal cannula
24
Q

O2 Delivery

3. Aquinox/Optiflow/High Flow Humidification System

INDICATIONS:

A
  • ONLY in hospital or LTACH
    • *cannot go home w/ this
25
O2 Delivery **3. Aquinox/Optiflow/High Flow Humidification System** **BENEFITS**
* SAME as nasal cannula's * **Pot. provide some Positive Pressure (not measurable)**
26
O2 Delivery ## Footnote **3. Aquinox/Optiflow/High Flow Humidification System** **LIMITATIONS:**
* CANNOT UNPLUG * cannot mobilize in hallway * **Need _continuous_ nasal breathing to receive FiO2 (100% FiO2 received)**
27
O2 Delivery **4. NON-****Rebreather Mask** **\*Bag ALWAYS inflated** **PURPOSE:**
* High lvl of O2 to pts in **varying lvls of resp. distress** * High amts of O2 to pts during **emergency situations @ 100% FiO2 @ 15L/min** * **​hypoxia** * **seizures** * **conscious w/ VTACH**
28
O2 Delivery ## Footnote **4. NON-Rebreather Mask** **\*Bag ALWAYS inflated** **DEVICE DESIGN**
* 3 one-way valves and bag reservoir to supply **highest O2 conc. possible** * **Flap valves--\> prevent EXHALED air from entering bag and _ensure_ EXHALED air exit _side of mask_---\> _INSP air therefore 100% from reservoir bag_**
29
**O2 Delivery** **4. NON-Rebreather Mask** **\*Bag ALWAYS inflated** **INDICATIONS**
* SHORT TERM for **emergency situation** when pts have **_adequate, spontaneous_** respirations * hypoxia * seizures * VTACH w/ conscious pts
30
**O2 Delivery** **4. NON-Rebreather Mask** **\*Bag ALWAYS inflated** **SETUP:**
Reservoir bag must be COMPLETELY INFLATED _BEFORE_ applying to pt
31
O2 Delivery ## Footnote **4. NON-Rebreather Mask** **\*Bag ALWAYS inflated** **BENEFITS:**
* Delivers O2 conc **100%** * **easy setup in an emergency situation**
32
O2 Delivery **4. NON-Rebreather Mask** \*Bag ALWAYS inflated **LIMITATIONS:**
* NO POSITIVE PRESSURE * **Cannot complete ADL while donned--\> switch to alternative nutrition source/medication route** * **​MORE SHORT TERM ANYWAY!** * **Only provide ONE setting reliably: 15L/min @ 100% FiO2** * **​**Can be placed on 6-14L/min w/ LESS FiO2 * **prevents O2 induced barotrauma to parenchyma**
33
**Partial Rebreather Mask** **What's the deal w/ this?**
* SIMILAR to NRM _BUT:_ * _​_Resp. bag W/OUT flaps--\> this makes both valves, 2-way valves allowing for passage of gases during **INHALE AND EXHALE.** * **about 1/3 of EXHALED VT re-enters bag to be re-inhaled** * **specific design allows for pt to inhale MIXTURE of atm. air, O2, and EXHALED air** * **​Use of CO2==Resp. stimulant\*\*\***
34
O2 Delivery ## Footnote **6. Face Tent** **\*OPEN-CIRCUIT** **PURPOSE:**
* Delivers HIGH FLOW to pt thru soft plastic "bucket"
35
O2 Delivery **6. Face Tent** **\*OPEN-CIRCUIT** **DESIGN:**
* FLOW RATE: * **8-10L/min w/ estimated FiO2 30-100%** * **​bc OPEN CIRCUIT**
36
**O2 Delivery** **6. Face Tent** **\*OPEN-CIRCUIT** **BENEFITS:**
* Post-op pts, claustrophobic, facial trauma, burn pts * comfortable
37
**O2 Delivery** **6. Face Tent** **\*OPEN-CIRCUIT** **LIMITATIONS**
* Amt. of O2 **pt actually receives** varies * bc **OPEN CIRCUIT** * **remove to eat/ADL** * **NO POSITIVE PRESSURE**
38
O2 Delivery ## Footnote **7. Ambu Bag/Resuscitator Bag** **The CPR one\*** **PURPOSE:**
* Used when **POSITIVE PRESSURE is indicated** * **provides POSITIVE pressure vent--\>** directs O2 (or CO2) inside via 1-way valve
39
O2 Delivery ## Footnote **Ambu Bag/Resuscitator Bag** **DESIGN:**
* Reservoir bag connected by tubing and a **non-rebreathing valve to a face mask and/or ET tube** * **self-inflating w/ room air OR from O2 source**
40
Ambu Bag/Resuscitator Bag ## Footnote **SET UP**
* Squeeze bag **once every 6s for adequate RR** * **​10 respirations/min for Adult**
41
Ambu Bag/Resuscitator Bag ## Footnote **INDICATIONS**
* IMMEDIATE ventilation/POSITIVE PRESSURE **short term** * **1-1.5L capacity in bag** * **CAN provide FiO2 100% _if flowmeter available_ OR provides 21% FiO2 if set to _Room Air_**
42
Ambu Bag/Resuscitator Bag ## Footnote **BENEFITS:**
* Used in **emergency** when pt loses consciousness **but vent. is not present OR ET not placed** * **used if vent malfunctions or stops working** * used for pt who req's **POSITIVE PRESSURE during mobilization**
43
Ambu Bag/Resuscitator Bag **LIMITATIONS:**
* Need person to squeeze bag * 1x **every 5s appears slow and untrained indiv's can struggle to maintain this rate**
44
O2 Delivery ## Footnote **Tracheostomy weaning: Trach Mask vs. T-piece** **TRACH MASK**
* BLUE TUBING BC HUMIDIFICATION * **OPEN CIRCUIT** * Similar to face tent----humidified HIGH FLOW O2 via soft plastic mask * used after weaning from vent for weeks prior to physician decannulation * **unreliable FiO2 due to lost O2 around collar** * **Flow rate changed via air entrainment port on wall**
45
**Tracheostomy weaning: Trach Mask Vs. T-Piece** **T-Piece** **\*CLOSED CIRCUIT**
* CLOSED CIRCUIT means you can **directly measure amt O2 delivered** * adaptor attached to trachostomy and tubing to **provide closed circuit O2 delivery** * **Flow rate changed via air entrainment port on wall** * **BENEFIT:** aware of specific FiO2
46
**Tracheostomy weaning: Trach Mask vs. T-Piece** **\*BOTH PORTABLE!!**
* Either can be attached to a **O2 tank via air entrainment port and tubing** * **trach collar or t-piece portable entrainment port O2 tubing**
47
Monitoring SpO2 sats ## Footnote **Maintain \>/= 90%** **FLOWCHART**
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