when oxygen doesnt get to the brain, it can begin to die with in __ to __ minutes
4-6 minutes
inhalation is when oxygen moves from the _____ to the ____
atmosphere to the lungs
process in which the oxygen crosses the alveolar and attaches to the hemoglobin
diffusion
____ cells carry hemoglobin
red blood cells
carbon leaves the body thru ____
exhalation
process of exchanging air between the lungs and the environment
ventilation
Anatomy of the Upper Airway:
these structures make up the _____
-nose
-mouth
-jaw
-oral cavity
-pharynx
-larynx
upper airway
Anatomy of the Upper Airway:
main functions of the upper airway is to ____,____ and ____ the air as it enters the body
warms,filters and humidify
Anatomy of the Upper Airway:
nasopharynx, oropharynx and laryngopharynx make up the _____
pharynx
Anatomy of the Upper Airway:nasopharynx
lined with ___ ____ ____ that filters out dust and small particles
ciliated mucous membrane
Anatomy of the Upper Airway: oropharynx
contains the _______ which helps prevent food and liquid from entering the larynx
epiglottis
Anatomy of the Upper Airway:larynx
form by many independents ____ structures
cartilaginous
Anatomy of the Upper Airway:larynx
divides the ____ and ____ airways
upper
lower
Anatomy of the Upper Airway:
known as the adams apple
thyroid cartilage
Anatomy of the Upper Airway:
forms the lowest portion of the larynx
cricoid cartilage
Anatomy of the Upper Airway:
narrowest part of an adults airway
glottis
Anatomy of the lower Airway:
function of the lower airway is to deliver oxygen to ____
the alveoli
Anatomy of the lower Airway: trachea
conduit for air entry in to the
lungs
Anatomy of the lower Airway: trachea
located in the ____ cavity
thoracic
Anatomy of the lower Airway:
bronchioles are made up of ____ muscle
-dialates and contract as oxygen passes through them
smooth muscle
Anatomy of the lower Airway:
bronchioles connect to the smaller _____
alveoli
Anatomy of the lower Airway:
oxygen and carbon are exchanged in the
alveoli
Anatomy of the lower Airway:
alveoli are surrounded by ______
pulmonary capillaries
Anatomy of the lower Airway:
the ___ is the area between the lungs which contain
-heart
-great vessels
-trachea
-major bronchi
mediastinum
Anatomy of the lower Airway:
phrenic nerve is located in the thorax and allows the ___ to contract, necessary for breathing
diaphragm
ventilation:
not all all inspired air reaches the ____
alveoli
ventilation:
average tidal volume is ____mL
500
ventilation:
amount of air that is moved into or out of the lung in a single breath
tidal volume
ventilation:
amount of air that doesnt reach the alveoli
dead space
ventilation:
failure to meet bodys needs for oxygen maye result in ___
hypoxia
ventilation:
COPD patients always have higher levels of
carbon dioxide
ventilation:
the drive to breath is base on the bodies ____
Ph level
ventilation:
tissues that are more ____ get more oxygen from RBC
acidic
ventilation:
tissues that are more ____ get less oxygen from RBC
alkalitine
what percent of air in nitrogen
78%
what percent of air is oxygen
21%
ventilation:
inhaltion is a ____ process
active
ventilation:
exhalation is a _____ process
passive
ventilation:
inhaling creates a ____ pressure
negative
ventilation:
exhaling creates a ____ pressure
positive
oxygenation:
process of loading oxygen molecules into the hemoglobin
oxygenation
respiration:
____ is the exchange of oxygen and carbon dioxide in the lung
external respiration
respiration:
_____ exchange of oxygen and carbon dioxide between tissues and the circulatory system
internal respiration
respiration:
cardiac irritability occurs how many mins are no oxygen
0-1 mins
respiration:
brain damage is not likely after how many mins are no oxygen
0-4mins
respiration:
brain damage is possible after how many mins are no oxygen
4-6mins
respiration:
brain damage is very likely after how many mins are no oxygen
6-10mins
respiration:
irreversible brain damage occurs after how many mins are no oxygen
10+mins
respiration:
when adequate amount of oxygen is in the body, cells convert glucose into energy thru what kind of metabolism
aerobic metabolism
respiration:
when insufficient oxygen is in the body, cells run off of what metabolism
anaerobic metabolism
which receptors monitor levels of:
-oxygen
-carbon dioxide
-hydrogen levels
-pH of cerebrospinal fluid
chemoreceptors
ventilation/perfusion mismatch:
ventilation and perfusion must be ____
matched
ventilation/perfusion mismatch:
a failure to match _____ and ____ is the cause of most abnormalities of oxygen and carbon dioxide exchange
ventilation and perfusion
ventilation/perfusion mismatch:
when there is a mismatch ____ ____ is not able to diffuse from blood to lungs
carbon dioxide
-results in carbon dioxide filled cells recirculating leading hypoxemia
____ respirations have an irregular or unidentifiable pattern and may follow serious head injury
ataxic
______ respirations are deep,rapid, commonly seen in patients with metabolic acidosis
kussmaul
patients with ______ breathing need to treated immidiately
inadequate
pulse oximeter:
what does a pulse oximeter measure?
oxygen saturation levels
pulse oximeter:
spo2 should be ___% to ___%while breathing normal room air
98%- 100%
pulse oximeter:
although no normal values exsist, an spo2 of less than ____% in a nonsmoker can indicate hypoemia
96%
pulse oximeter:
how long does it take for pulse oximeter to reflect changes
60secs
opening the airway:
adequate breathing means you also have an adequate airway
true/false
false
opening the airway:
most effective position for opening the airway is the ______ position
supine
opening the airway:
if patient is found in the prone position you should reposition the patient in the supine position by _____
log roll
-move the patient in a way so that the whole body, neck and head move as a unit
opening the airway:
the most common airway obstruction is the ____ in unconscious patients
tongue
opening the mouth:
for patients who have not sustained spinal trauma you can use the _____ ____ ___ ____to open the airway
head tilt chin lift
opening the mouth:
patients with suspected spinal injury you should use the ___ ___ to open the airway
jaw thrust
opening the mouth:
chest movement alone doesnt indicate that the breathing is adequate
true/false
true
suctioning:
if you hear gurgling, the patient needs ____
suctioning
suctioning:
if the airway is not clear, you will force secretions and fluids into the _____
lungs
suctioning:
A ____ ____ unit must provide enough vacuum pressure and flow to allow you to suction the mouth and nose effectively
portable suctioning unit
suctioning:
A __ ___ unit should generate airflow of more than 40L/min and a vacuum of more than ____mm Hg when the tubing is clamped
fixed suctioning
300
suctioning:
____ and ___ should be fitted with the following
-Wide-bore, thick-walled, nonkinking tubing
-Plastic, rigid pharyngeal suction tips, called tonsil tips or Yankauer tips
-Nonrigid plastic catheters, called French or whistle-tip catheters
-A nonbreakable, disposable collection bottle
-Water supply for rinsing the tips
portable and fixed
suctioning:
a hollow,cylindrical device used to remove fluid from the airway
suction catheter
suctioning:
best kind of catheter for children and infants is
tonsil tip catheter
-large diameter tips are rigid and do not collapse
suctioning:
soft plastic, non rigid catheters are called
french tip/ whistle tip
used when
-patient has a stoma
-patient with clenched teeth
-suctioning the nose is nexcessary
suctioning:
before inserting a catheter ensure proper ____
size
suctioning:
never suction more than ___ secs on adults
15secs
suctioning:
never suction more than ___ secs for children
10secs
suctioning:
never suction more than ___ secs for infants
5secs
suctioning:
repeat suctioning only after the patient has been adequately ____ and ____
ventilated and reoxygenated
suctioning:
some secretions are to large to be suctions, in these case you should_____
log roll the patient enough to clear the mouth
suctioning:
if a patient who requires assisted ventilations produces frothy secretions as quickly as you can suction them. you should____
-suction airway for 15secs
-ventilate for 2 mins
-and alternate that pattern until secretions have cleared
airway adjunctions:
a _____ ____ prevents obstruction of the upper airway and allows for passage of air and oxygen to the lungs
airway adjunction
airway adjunctions:
the ____ ____:
-keeps the tongue from blocking the upper airway
-makes it easier to suction the oropharynx if necessary
oropharyngeal airway
airway adjunctions:
____ is used on unconscious patients without a gag reflex
oropharyngeal airway
airway adjunctions:
___ reflex is a protective reflex that keeps food from entering the airway
gag reflex
airway adjunctions:
the following are some things to consider when using the _____ _____
-good way to help maintain the airway of a spinal injury patient.
-may make the head tilt–chin lift and jaw-thrust maneuvers easier to perform.
-if too large could push the tongue back into the pharynx, blocking the airway.
-if too small could block the airway directly, like any foreign body obstruction.
oropharyngeal airway
airway adjunctions:
use a nasopharyngeal airway on a patient that_____
-unresponsive/altered mental status
-gag reflex
airway adjunctions:
consult medical control before inserting a nasopharyngeal airway on a patient who has sustained _____
trauma to the head or face
maintaining the airway:
The _____ position is used to help maintain a clear airway in an unconscious patient who is not injured and is breathing on his or her own with a normal
recovery position
maintaining the airway:
the recovery position is not for patients who have suspected ____ ____ or ____ injuries
spinal, hip, pelvic
supplemental oxygen:
aluminum oxygen cylinders are test every ____ years
5 years
supplemental oxygen:
composite cylinders are tested every ___ years
3 years
supplemental oxygen:
____ and ___ cylinders are used most often
___ cylinder remains on board the unit as a main supply tank
D and M cylinders
M cylinder
supplemental oxygen:
an alternative to compressed gas is ___ ____
liquid oxygen
supplemental oxygen:
___ ___ system prevents the wrong regulator being accidentally used on a different cylinder
pin-indexing system
supplemental oxygen:
pressure regulators ___ the cylinders pressure to a therapeutic range for the patient
reduce
supplemental oxygen:
regulators reduce the cylinder PSI to ___ to ___ PSI
40-70
supplemental oxygen:
never leave an ____ ____ standing unattended
oxygen cylinder
supplemental oxygen:
_____ ____ refers to damage to cells due to excessive oxygen levels in the blood
oxygen toxicity
supplemental oxygen:
patients experiencing ___ should be placed on oxygen
shock
supplemental oxygen:
when in doubt, or if unable to measure oxygen saturation reliably, supplemental oxygen should be administered.
true/false
true
Oxygen-Delivery Equipment:
what is the preferred way to give oxygen in the prehospital setting?
nonrebreathing mask
-capable of providing up to 90% inspiration
Oxygen-Delivery Equipment:
when using a nonrebreathing mask make sure the ___ is full before placing the mask on the patient
bag
Oxygen-Delivery Equipment:
adjust the flow rate on a nonrebreathing mask to ___L/min
10-15L/min
-if bag collapses, increase flow rate
Oxygen-Delivery Equipment:
____ deliver oxygen thru two small tubelike prongs that fit into the patients nostrils
nasal cannulas
Oxygen-Delivery Equipment:
nasal cannulas can provide ____% to ___% inspired oxygen whem the flow meter is set at ___ to___l/min
24% to 44% inspire oxygen
1-6L/min
Oxygen-Delivery Equipment:
for patient comfort flow rates above ___L/min are not recommended when using nasal cannulas
6L/min
Oxygen-Delivery Equipment:
if long transport time is anticipated, consider using ______
humidification
-nasal cannulas can irritate the mucous membrane lining of the nose( causing a nose bleed)
Oxygen-Delivery Equipment:
___ ___ ___ enriches the air mixture so that patients receive ___% to ___% oxygen
partial rebreathing mask
80% to 90% oxygen
Oxygen-Delivery Equipment:
to convert a nonrebreather mask to a partial mask remove the ___ ___ ___ and the reservoir bag
on way valve
Oxygen-Delivery Equipment:
_____ masks are medium flow devices that deliver ____% to ___ % of oxygen
venturi mask
24% to 40% oxygen
Oxygen-Delivery Equipment:
_____ masks cover the hole on the neck and have a securing strap
tracheostomy masks
Assisted and Artificial Ventilation:BVM
____ the bag everytime the patient breaths
squeeze
Assisted and Artificial Ventilation:BVM
after __ to ___ breaths deliver an appropriate tidal volume
5 - 10breaths
Assisted and Artificial Ventilation:
In normal breathing, the diaphragm contracts and _____ pressure is generated in the chest cavity, which sucks air into the chest.
negative
Assisted and Artificial Ventilation:
______-pressure ventilation generated by a device forces air into the chest cavity.
positive
Assisted and Artificial Ventilation:
_______ rates (for apneic patients with a pulse)
Adult: 1 breath per 5–6 seconds
Child: 1 breath per 3–5 seconds
Infant: 1 breath per 3–5 seconds
ventilation
Assisted and Artificial Ventilation:
the gas you exhale contains ___% of oxygen
16% oxygen
Assisted and Artificial Ventilation:
to increase oxygen concentration administer ____-flow oxygen at 15L/min
high
-combined with you exhaled breath, this will deliver 55% oxygen
Assisted and Artificial Ventilation:
who has the tidal volume of 1200-1600ml
an adult
Assisted and Artificial Ventilation:
who has the tidal volume of 50-700ml
pediatric
Assisted and Artificial Ventilation:
who has the tidal volume of 150-240ml
infant
Assisted and Artificial Ventilation:
if you have difficulty ventilating with a BMV you should____
switch to another method
Assisted and Artificial Ventilation:
when using a BVM the amount of volume you pump into the patient should be based on
chest rise and fall
Assisted and Artificial Ventilation:
_____ ____ occurs when ventilation fill the stomach with air
gastric distention
Assisted and Artificial Ventilation:
___ ___ ventilation devices allow a single rescuer to use both hands while also providing positive pressure ventilation
manually triggered ventilation
-also know as flow restricted, oxygen powered ventilation devices
Assisted and Artificial Ventilation:
manually triggered ventilation has a peak flow rate of ____% oxygen at up to ____L/min
100% at up to 40L/min
Continuous Positive Airway Pressure (CPAP):
A _____ increases pressure in the lungs, opens collapsed alveoli, pushes more oxygen across the alveolar membrane
a CPAP
Continuous Positive Airway Pressure (CPAP):
CPAP can cause a drop in a patients cardiac output
true/false
true
Continuous Positive Airway Pressure (CPAP):
if you see these signs you should use a ____
-The patient is alert and able to follow commands.
-The patient displays obvious signs of moderate to severe respiratory distress
-The patient is breathing rapidly, such that it affects overall minute volume (greater than 26 breaths/min).
-The pulse oximetry reading is less than 90%.
CPAP
Continuous Positive Airway Pressure (CPAP):
a pressure of 7-10 cm H2O is an acceptable therapeutic range
true/false
true
stomas:
if a patient has a stoma you should use what size mask on your BVM
child or infant mask
Author
daniel.ramos702
ID
342318
Card Set
chapter 10 airway management
Description
emergency care and transportation of the sick and injured 11th edition