**AIRWAY** Flashcards
O2 tanks should be kept clean of?
- Moisture
- grease
- dust
How much PSI in a full tank?
2000 PSI
regulars reduce this pressure by 15-50 PSI
What regulates 02 tank and allows for administration?
Flow Meter
What is the “residual amount” in 02 Tank?
- 200 psi
- usually if this low it wont work.
Pocket Mask 02% delivered?
16
Nasal Canual Rate and O2 Delivered?
1-6 Rate
25-45 % Delivered
Rule for a Nasal Canual?
Add 4% to each 02% administed by nasal canual.
Simple Face Mask Rate & O2 Delivered?
6-10 Rate
40-60 02% Delivered.
Non- Rebreather rate & O2 Delivered?
10-15 Rate
80-100 O2% delivered.
BVM w/reservoir bag rate and O2 Delivered?
10-15 rate
90-100 O2% delivered.
BVM without reservoir bag with 02 attached 02 delivered??
40-60
Define Tidal Volume?
amount of air moved in and out of lungs in relaxed/normal breathing
-500CC
Vital Capacity?
Volume of air expelled from lungs by MAX exhalation followed by MAX inhalation.
-4800cc
Residual Volume?
Volume of air remaining in lungs after MAX exhalation
-1200CC
Total Lung capacity?
amount of air contained in lungs after MAX inhalation.
-6000CC
Functional Residual Capacity?
amount of air remaining in lungs after normal exhalation
-2400CC
Cell death rates for
Brain:
Cardiac:
Muscles:
Brain/Neurons : 4-6 Mins ( complete Hypoxia)
Cardiac : 30 Mins
Muscle: up to 1 hr
3 Major Gases of respiration?
1) 02 - ATP Production
2) Carbon - Building Block
3) Hydrogen - Body Ph
Define Respiration
Movement of gases thru membrane
Define Ventilation
Movement of air in and out of lungs
Inspiration
+
Expiration
Stops @ alveoli
Respiratory Center of Brain?
Medulla Oblongata
- Pons take over if these fail
Amount of air that reaches the Alveolis?
350 CCs
Average adult inhales how much air per ventilation?
500-800CC
94% why ?
Certain amount of 02 Must be present in blood 02 in blood for 02 to diffuse in Cells
D: Oxygenation?
Changes in 02
- values in blood
D: Ventilation?
Changes in C02 in blood
What is the 5 Ps ?
- Preoxygenation
- Prepare
- Postion : ear to sternal notch
- Placement
- Proof (3 waves Etco2 + Ausculation)
BVM Volume?
1000-1600ml/AIR
Indications for King Lt & LMA?
- Unconscious Pt w/ No gag reflex
- Cardiac arrest
- Pt requiring advanced airway w/ transport time >20 Minutes
- SP02 <90% during effective BLS management
Contraindications of King Lt & LMA?
- intact gag reflex
- upper airway burns
- ingestion of caustic substances
- Esophageal varices
- wrong size
Cylinder H?
3.14
Cylinder M?
1.56
Cylinder E?
0.28
Cylinder D?
0.16
Formula for 02 tank?
Amount tank - 200 PSI x tank constant Divided by LPM
King Lt 3 sizes?
Yellow (3) : 4-5 feet
Red (4): 5-6 Feet
Purple (5): 6 Feet
LMA Sizes?
3: >30Kg
4: normal adult
5: Bigger adult
Suction we use prehospitally?
Yaunker
BVM without BAG and 02 delivers how much 02?
21%
Hypoventilation can cause a build up of what?
C02. which will lead to hypoxia & acidosis.
Child BVM holds how much?
500 - 700ML
Infant BVM holds?
150-240ml
Gastric distention is caused by what 3 things?
Inadequate or hyperextension of head
too much pressure from BVM
improperly placed airway adjuncts.
suctioning can cause vagal stimulation which does what?
depresses heart rate and blood pressure.
can stimulate a cough and increase ICP in PT with head injury.
leukemia?
increased/abnormal WBC.
Catheter sizes?
6.5-18 French
what wouldnt effect pulse oximetry ?
jaundice, dark skin, anemia.
every 1 liter of 02 is how much?
4%
